02068-DSH-001-B June 2003
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Data Sheet
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Inc, Proprietary and Confidential
02068-DSH-001-B Page 2 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
TABLE OF CONTENTS
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 1 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 2 Pin Description - BCC+24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Table 3 Absolute Maximum Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 4 Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 5 AC Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 6 DC Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Modulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Typical modulation current vs RMODSET(3.3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mean Power Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical bias current vs RBIASSET (3.3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical limiting current vs ROCA (25 °C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Temperature coefficient of Ioca at different ROCA settingst . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Enable Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Current Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Slow-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Temperature Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Typical Eye Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Temperature Compensation Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Bare Die Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 7 Pad Centers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
TQFP32 Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 8 Package Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
BCC+24L Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SMT Mounting Guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Disclaimer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
02068-DSH-001-B Page 3 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
FEATURES
Rise and fall times <180 ps
Operates with +3.3 volt supply
DC or AC-coupled modulation drive.
Independently programmable laser bias
(to 100 mA) and modulation currents (to 85 mA).
Automatic laser power control, with
programmable temperature compensation and
‘Slow-Start’.
Bias and modulation current monitors
Failure monitor
Available in BCC+24 , TQFP32 and DIE packages
APPLICATIONS
OC-3/STM1, SONET/SDH
OC-12/STM4, SONET/SDH
ATM
FTTH
DESCRIPTION
The CX02068 is a highly integrated, programmable laser
driver intended for Telecom applications up to 622 Mbps.
Using differential PECL data, the CX02068 supplies the
bias and modulation current for driving an edge-emitting
laser. The modulation output can be DC-coupled to the
laser diode, giving a significant power saving over AC-
coupled operation.
The CX02068 includes automatic power control (APC) to
maintain a constant average laser output power over
temperature and life. In addition, the modulation current
is temperature compensated to minimize variation in
extinction ratio over temperature.
Output flags indicate laser end of life as well as failure of
the APC circuitry to maintain average output power.
TABLE 1 ORDERING INFORMATION
CONNECTIONS
Note : For information on Die pad connections please see Fig. 13 on page12.
BCC+24L TOP VIEW TQFP32 TOP VIEW
Part Number Pin Package
CX02068B24 BCC+24L
CX02068TQ32 TQFP32
CX02068DIEWP Waffle pack
CX02068WAFER Expanded whole 8” wafer on a 10”
grip ring
CX02068EVM Evaluation board with a CX02068B24
2
3
4
5
6
78 9 10 11 12 13
14
15
16
17
18
19
24 23 22 21 20
1
ENA
DIS
FAIL
OCA
GND
BIAS
OUT+
OUT-
PD
GND
GND
VCC
GNDA
CMPC
TCSLOPE
TCSTART
MODSET
OCASET
DIN
DIN
VCC
4mm
BIASMON
4mm MODMON
VCC
2068
1
2
7
6
5
4
3
8
24
23
18
19
20
21
22
17
12
9
10
11
15
14
13
16
29
32
31
30
26
27
28
25
N/C
N/C
N/C
ENA
DIS
FAIL
OCA
GND
PD
OUT-
OUT+
BIAS
VCC
DIN
DIN
VCC
VCC
BIASMON
MOD MON
VCC
VCC
VCC
GND A
GND A
VCC
CMPC
NC
TC SLOPE
GND
MOD SET
OCA SET
VCC
5mm
5mm
Fig. 1 Fig. 2
02068-DSH-001-B Page 4 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
TABLE 2 PIN DESCRIPTIONS
Pin No
BCC+24
Pin No
TQFP32 Name Function
-18
VCC Power supply. All pins should be connected
- 22 GNDA Ground to output stage.(inductor to ground to optimize output stage performance)
-32
VCC Power supply. All pins should be connected
- 5, 6, 8, 27 NC Not connected
-7
VCC Power supply. All pins should be connected
-25
VCC Power supply. All pins should be connected
1 9 ENA Bias and modulation output enable (TTL/CMOS). HIGH for normal operation
2 10 DIS Bias and modulation output disable (TTL/CMOS). LOW for normal operation
311
BIASMON
Bias monitor. Connect a resistor between this pin and VCC to monitor. Connect to VCCif
not in use.
412
MODMON
Modulation monitor. Connect a resistor between this pin and VCC to monitor. Connect to
VCC if not in use.
513FAIL
Mean power control failure indicator (TTL/CMOS). Goes low when control loop is no
longer able to maintain constant current at PD
614OCA
Over-Current Alarm (TTL/CMOS). Goes low when IBIAS exceeds the preset bias current
limit
7 - GND Ground. All pins should be connected
8 17 BIAS Laser bias current output
91VCC Power supply. All pins should be connected
10 19 OUT+ Positive modulation current output. Sinks current when DIN is HIGH.
11 20 OUT- Negative modulation current output. Sinks current when DIN is HIGH.
12 23 GNDA Ground to output stage.(inductor to ground to optimize output stage performance)
13 24 PD Monitor photodiode input. This input is connected to the monitor photodiode anode for
automatic power control.
14 26 CMPC Mean power control dominant pole capacitor
15 15 GND Ground. All pins should be connected
16 28 TCSLOPE
Connecting a resistor between this pin and ground sets the temperature coefficient of
IMODSET (using the internal IC temperature).
17 - TCSTART
Secondary temperature coefficient of IMOD. A resistor on this pin to ground sets the
threshold temperature at which the temperature compensation starts.
18 30 MODSET Modulation current set. Connect a resistor between this pin and ground
19 31 OCASET Over current alarm set. Connect a resistor between this pin and ground
20 4 VCC Power supply. All pins should be connected
21 2 DIN Positive Data Input (PECL). Self biased.
22 3 DIN Negative Data Input (PECL). Self biased
23 16 VCC Power supply. All pins should be connected
24 29 GND Ground. All pins should be connected
02068-DSH-001-B Page 5 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
TABLE 3 ABSOLUTE MAXIMUM RATINGS
These are the absolute maximum ratings at or beyond which the IC can be expected to fail or be damaged. Functional
operation at these levels is not implied.
TABLE 4 RECOMMENDED OPERATING CONDITIONS
Parameter Rating Units
Power supply (VCC-GND) -0.5 to +6.0 V
Operating ambient -40 to +85 °C
Storage temperature -65 to +150 °C
Maximum bias current 120 mA
Maximum laser modulation current (through OUT+/OUT2+, OUT-/OUT2-) 100 mA
Perimeter Rating Units
Power supply (VCC-GND) 3.3 ± 10% V
Junction temperature (die) -40 to +120 °C
Operating ambient -40 to +85 °C
02068-DSH-001-B Page 6 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
TABLE 5 AC CHARACTERISTICS
(VCC=+3.3 V ± 10%, TA=-40 °C to +85 °C, unless otherwise noted)
Parameter Conditions Min. Typ. Max. Units
Differential input voltage =2 x (DIN+HIGH-DIN+LOW)
(clock inputs follow same relationship) 300 - 1860 mV
Modulation current range 5 - 85 mA
modulation current with output
disabled DIS-HIGH - - 300 µA
Programmable range for modulation
current temperature coefficient Adjustable 500 - 104ppm/°C
Programmable temperature at which
modulation current TC compensation
enables
Programmed by choice of RTCSLOPE 20 - 60 °C
Modulation output rise/fall times 20% to 80% into 25 Ω , with matching
network - - 180 ps
Overshoot of modulation output
current Into 25 Ω load, with matching network -10 - +10 %
Modulation output pulse width
distortion 1 Measured using alternating 1-0 pattern - - 1201ps
Modulation output deterministic jitter
peak-to-peak. Measured into 25 Ω load
using: 223-1 PRBS at 622 Mbps includes
pulse width distortion
- - 140 ps
1 Contact your Mindspeed sales representative concerning availability of parts with a maximum modulation output pulse width distortion of 80 ps
or less.
02068-DSH-001-B Page 7 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
TABLE 6 DC CHARACTERISTICS
(VCC=+3.3V ± 10%, TA=-40 °C to +85 °C, unless otherwise noted)
Parameter Conditions Min. Typ. Max. Units
Supply current Excluding IBIAS and IMOD, but with
IBIAS and IMOD set to 50 mA -42 47 mA
Bias current adjust range Limited by IREF across temperature
range 4 - 100 mA
Bias current with output disabled Tx_Dis = HIGH - - 10 µA
Bias current limit adjustment
region TA = +85 °C 20 - 100 mA
Change in bias current limit over
temperature 100 - 130 µA/°C
Monitor diode reverse bias voltage 2 - - V
Monitor diode current adjustment
range 10 - 1000 µA
TTL/CMOS input HIGH voltage
(enable, disable) 2.0 - - V
TTL/CMOS input LOW voltage
(enable, disable) -- 0.8 V
CMOS output HIGH voltage (FAIL,
OCA) 2.4 - - V
CMOS output LOW voltage (FAIL,
OCA) -- 0.4 V
Differential input impedance Data and clock inputs 2.5 - - kΩ
Common-mode input voltage VCC-1.7 -VCC - VIN (Diff)
4 V
Self-biased common mode input
voltage Data and clock inputs VCC-1.7 -VCC-0.47 V
02068-DSH-001-B Page 8 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
FUNCTIONAL DIAGRAM
FUNCTIONAL DESCRIPTION
Overview
The CX02068 laser driver consists of a high-speed
modulation driver and a laser bias generator with mean
power control (MPC). It is optimized for high speed, low
power operation at 3.3 V supply.
Modulator
The modulator output stage is designed to drive up to
85 mA in either AC-coupled or DC-coupled mode. DC-
coupled performance depends on the laser used.
The CX02068 modulation output is optimized for driving a
25 Ω dynamic load; the minimum required voltage at
OUT+ and OUT- is 0.6 V. To interface with the laser
diode, a matching resistor (RD) is required for impedance
matching. An RC shunt network is necessary to
compensate for the laser diode parasitic inductance,
thereby improving the optical eye. Typical values are
RSHUNT = 51 Ω, CSHUNT = 3.3 pF
Any capacitive loading at the cathode of a laser diode will
degrade the optical output performance. An inductor is
used to isolate the BIAS pin from the laser cathode.
Typical modulation current vs RMODSET(3.3V)
X100
X55
Failure
Detect
DIS
ENA
55
55 FAIL
X1
OCA
DIN
BIAS MON
MOD MON
OUT-
OUT+
VDD
IBIAS
RMODSET
RTCSLOPE
RTCSTART
RMPCSET
VDD
CMPC
VREF
PD
ROCA
OCA SET
RD
GNDA
RSHUNT
CSHUNT
I BIAS
DIN
IMOD PP
Fig. 3
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
0 5000 10000 15000 20000 25000 30000 35000
RMODSET (Ω)
IMOD (A)
Fig. 4
02068-DSH-001-B Page 9 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
FUNCTIONAL DESCRIPTION
Mean Power Control
To maintain constant average optical power, the
CX02068 incorporates a control loop to compensate for
the changes in laser threshold current over temperature
and lifetime. A monitor photodiode mounted in the laser
package is used to convert the optical power into a
photocurrent. The MPC loop adjusts the laser bias current
so that the monitor current is matched to a reference
current set by a single external resistor (RMPCSET). The
time constant of the loop is then determined by CMPC.
Typical bias current vs RBIASSET (3.3V)
Safety logic is provided in order to limit the maximum bias
current. The bias current at which the safety logic trips is
set by an external resistor to ground (ROCA) from the
OCASET pin. When the bias current limit is reached alarm
flag OCA is asserted LOW. A loop failure alarm is also
provided to detect when the bias current can no longer be
adjusted to achieve the desired average optical power.
Typical limiting current vs ROCA (at 25 °C)
Temperature coefficient of IOCA at different ROCA
settings
0
20
40
60
80
100
120
0 10000 20000 30000 40000
RBIASSET (Ω)
Bias current (mA)
Fig. 5
0
10
20
30
40
50
60
70
80
90
100
0 10000 20000 30000 40000
ROCA (Ω)
IOCA (mA)
Fig. 6
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0 5000 10000 15000 20000 25000 30000 35000
ROCA (Ω)
Change in IOCA over temperature (mA/°C)
Fig. 7
02068-DSH-001-B Page 10 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
FUNCTIONAL DESCRIPTION
Enable Control
The CX02068 incorporates a dual polarity laser driver
enable function. When ENA is LOW or DIS is HIGH, both
the bias and modulation currents are off.
Current Monitors
The CX02068 features bias and modulation current
monitor outputs. The BIASMON output sinks a current
equal to nominally 1/55 of the laser bias current (IBIAS).
The MODMON output sinks a current equal to nominally
1/55 of the laser modulation current (IMOD). BIASMON and
MODMON should be connected through a pull-up resistor
to VCC. Choose a pull-up resistor value that ensures a
voltage at BIASMON greater than VCC -1.6 V and a voltage
at MODMON greater than VCC -1.0 V. These pins should
be tied to VCC if not used.
Slow-Start
For laser safety and reliability, the CX02068 incorporates
a slow-start circuit that provides a delay of approximately
200 ns before enabling the laser diode.
Temperature Compensation
The CX02068 features built in temperature compensation
of the modulation current set using external resistors.
Current pulled from TCSLOPE adjusts the slope of the
temperature compensation where as current pulled from
TCSTART sets the threshold temperature for the
coefficient.
TYPICAL EYE DIAGRAM
Laser Optical Power -3 dBm , Ext ratio typ 10 dB. Laser Bias current -20.29 mA, Modulation current 25 mA p-p.
Data :- 622 Mbps , 2^13-1 pattern with 100 consecutive zero's inserted
Fig. 8
02068-DSH-001-B Page 11 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
TEMPERATURE COMPENSATION GRAPHS
TCSLOP
E
TCSTART
80mA
0mA
+80°C-40°C
1∆
2∆
0.035
0.037
0.039
0.041
0.043
0.045
0.047
-40-20 0 20406080100
Temperature (°C)
IMOD (A)
5000 10000 20000 32000
0.035
0.04
0.045
0.05
0.055
0.06
0.065
-40 -20 0 20 40 60 80 100
Temperature (°C)
IMOD (A)
5000 10000 20000 32000
0.035
0.04
0.045
0.05
0.055
0.06
0.065
0.07
0.075
0.08
-40-20 0 20406080100
Temperature (°C)
IMOD (A)
5000 10000 20000 32000
RTCSTART = 0 Ω, VCC = 3.3V
RTCSTART = 250 Ω, VCC = 3.3V RTCSTART = 400 Ω, VCC = 3.3V
Fig. 12Fig. 11
Fig. 9 Fig. 10
RTCSLOPE - Figures shown are in Ω
RTCSLOPE - Figures shown are in Ω
RTCSLOPE - Figures shown are in Ω
02068-DSH-001-B Page 12 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
BARE DIE INFORMATION
TABLE 7 PAD CENTERS
Note : * single pad/double bond
PIN X Y PIN X Y PIN X Y PIN X Y
ENA -727 440 BIAS -550 -711 VCC 727 -550 GND 550 711
DIS -727 330 GNDA-440 -711 CMPC 727 -440 VCC 440 711
GND -727 220 VCCA -330 -711 GND 727 -33- DIN 330 711
BIASMON -727 110 *OUTP -210 -711 TCSLOPE 727 -220 DIN 220 711
MODMON -727 0 *OUTP -210 -711 GND 727 -110 VCC 110 711
FAIL -727 -110 *OUTN 100 -711 TCSTART 727 0 GND 0 711
GND -727 -220 *OUTN 100 -711 MPCSET 727 110 VCC -110 711
OCA -727 -330 VCCA 220 -711 GND 727 220 VCC -440 711
GND -727 -440 GNDA330 -711 MODSET 727 330 GND -550 711
VCC -727 -550 GNDA440 -711 OCASET 727 440
PD 550 -711 VCC 727 550
BIAS
GNDA
VCCA
OUTP
OUTN
PD
VCC
OCASET
MODSET
GND
MPCSET
TCSTART
TCSLOPE
CMPC
DIN
ENA
DIS
BIASMON
MODMON
FAIL
OCA
OUTP
OUTN
VCCA
GNDA
GNDA
GND
GND
VCC
GND
VCC
GND
DIN
VCC
GND
VCC
VCC
GND
GND
GND
VCC
19
10
20
21
31
32
41
Dimensions:
Pad opening 84 x 84 µm
Die size 1790 x 1718 µm
Die thickness 300 µm ± 10%
Chip Layout
Fig. 13
02068-DSH-001-B Page 13 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
TQFP32 PACKAGE INFORMATION
TABLE 8 PACKAGE DIMENSIONS
Dimensions Tolerance 5 x 5 x 1.0 mm TQFP, +2.00 mm FP
N Lead count 32
AMax. 1.20
A2 ±0.05 1.00
D ±0.15 7.00
D1 ±0.05 5.00
E ±0.15 7.00
E1 ±0.05 5.00
F1 ±0.10 2.67
F2 ±0.10 2.67
BOTTOM VIEW
Chamfer .203 (4X)
Exposed Pad
F1
F2
PIN 1 ID. 0 0.50P.05
C0.50P.05X45D
/
E1E
D1
D
-B-
-D-
-A-
1
N
TOP VIEW
b
A2 A
DETAIL X
DETAIL A
SIDE VIEW
Fig. 14
02068-DSH-001-B Page 14 of 16
CX02068
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
BCC+24L PACKAGE INFORMATION
Package Outline BCC+24L Thermal performance < 50°C
SMT MOUNTING GUIDES
BOTTOM VIEW
"B"
0.50 ± 0.100.50 TYP.
3.15
3.20 "C"
3.20
0.50 TYP.
3.15
2.20
2.20
C.L(PKG.)
C.L(PKG.)
"A"(PIN 1 CORNER)
0.50 ± 0.10
TOP VIEW
0.15
Y
X
4.00 ± 0.10
(PIN 1 CORNER)
4.00 ± 0.10
Fig. 14
Fig. 15 BCC Pads viewed from above
Corner Pads
Exposed Central Pad (connected to ground plane)
0.4
mm
0.3mm
Pad
0.45mm
0.45mm
Pad
Pad
2.1mm
2.1mm
PCB land
0.1mm
0.1mm
0.1mm
0.1mm
Solder Resist
Mask
0.025mm
0.025mm
0.025mm
PCB land
1.0mm
0.35mm
0.1mm
0.025
mm
0.025
mm
0.025
mm
Solder Resist
Mask
Paste Stencil
1.3mm
0.2mm
0.2mm
PCB land
Lower Right Pad
1.0mm
1.0mm
0.025mm
0.025m
m
0.025mm
0.025mm
0.025m
m
Solder Resist
Mask
Paste Stencil
1.26mm
1.26mm
Paste Stencil
0.55mm
0.55mm
0.125m
m
0.125m
m
W indow
Stencil
0.025mm
0.025mm
0.675mm
0.675mm
CX02068
02068-DSH-001-B Page 15 of 16
3.3 Volt Laser Driver IC for 155/622 Mbps
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
DISCLAIMER
© 2001 Mindspeed Technologies™, as a wholly owned subsidiary and the Internet infrastructure business of Conexant
Systems, All Rights are Reserved.
Information in this document is provided in connection with Mindspeed Technologies. "Mindspeed" products. These
materials are provided by Mindspeed as a service to its customers and may be used for informational purposes only.
Mindspeed assumes no responsibility for errors or omissions in these materials. Mindspeed may make changes to
specifications and product descriptions at any time, without notice. Mindspeed makes no commitment to update the
information contained herein. Mindspeed shall have no responsibility whatsoever for conflicts or incompatibilities arising
from future changes to its specifications and product descriptions.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document.
Except as provided in Mindspeed Terms and Conditions of Sale for such products, Mindspeed assumes no liability
whatsoever.
THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,
RELATING TO SALE AND/OR USE OF CONEXANT PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING
TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT,
COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. Mindspeed further does not warrant the accuracy or
completeness of the information, text, graphics or other items contained within these materials. Mindspeed shall not be
liable for any special, indirect, incidental, or consequential damages, including without limitation, lost revenues or lost
profits, which may result from the use of these materials.
Mindspeed products are not intended for use in medical, life saving or life sustaining applications. Mindspeed customers
using or selling Mindspeed products for use in such applications do so at their own risk and agree to fully indemnify
Mindspeed for any damages resulting from such improper use or sale.
The following are trademarks of Mindspeed Technologies,. the symbol M1, Mindspeed™, and "Build It First™" Product
names or services listed in this publication are for identification purposes only, and may be trademarks of third parties.
Third-party brands and names are the property of their respective owners.
Reader Response: Mindspeed Technologies, strives to produce quality documentation and welcomes your feedback.
Please send comments and suggestions to mailto:tech.pubs@mindspeed.com. For technical questions, or to talk to a field
applications engineer contact your local Mindspeed™ sales office listed below. For literature send email request to
literature@mindspeed.com.
02068-DSH-001-B Page 16 of 16
Headquarters
Newport Beach
Mindspeed Technologies
4000 MacArthur Boulevard, East Tower
Newport Beach, CA 92660
Phone: (949) 579-3000
www.mindspeed.com
Contact Information
Information provided in this Product Data Sheet is subject to change without notice.
Mindspeed Technologies™, Proprietary and Confidential
