Preliminary Technical Data ( Rev. 0.1, June 22, 2000)
TRM7953AN
STM-16 1.5 µm Optical Transmitter (for 200 GHz Spacing DWDM)
Preliminary Product Disclaimer
This preliminary data sheet is provided to assist you in the evaluation of functional samples of
the products that are under development and for which a reliability test has not been
completed. Until Hitachi, Ltd. releases these products for general sales, Hitachi, Ltd. reserves
the right to change prices, features, functions, specifications, capabilities and release
schedule.
FEATURES
· Data rates up to 2.5 Gbit/s
· Long-haul Transmission Length (400 km)
· Wavelength range, 1531.90 nm – 1562.23 nm
· ITU-Grid Channel (200 GHz Spacing)
· Compact size (51 x 73.4 x 12.7 mm3)
· Laser bias monitor output
· Laser back-facet monitor output
· Laser Temperature Deviation Alarm
· Support Single Channel Application
Confidential: Preliminary Technical Data of TRM7953AN (Rev. 0.1, June 22, 2000) HITACHI
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Block Diagram
Recommended Circuit
F/F Driver Laser-Diode
Module
APC
ATC
Data
Data
CLK
CLK
SELC BIAS (+) TEMP ALM
SDC BACK (+)
Optical
Output
Confidential: Preliminary Technical Data of TRM7953AN (Rev. 0.1, June 22, 2000) HITACHI
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PERFORMANCE SPECIFICATIONS
Table 1. Absolute Maximum Ratings
No. Item Symbol Rated Value Unit Note
1 DC Power Supply (+5.0 V) - -0.3 to +6.0 V Vcc
2 DC Power Supply (-5.2 V) - -6.0 to +0.3 V Vee
3 DC Power Supply (+3.3 V) - -0.3 to +4.0 V Vtt
4 Operating Case Temperature Topr. 0 to +70 °C
5 Storage Case Temperature Tstg. -20 to +75 °C
6 Lead Soldering Temperature - ≤250 °C
7 Lead Soldering Time - ≤10 s
Table 2. Operating Environment
Electrical and optical characteristics below are defined under this operating environment, unless
otherwise specified.
No. Parameter Symbol Min. Typ. Max. Unit Remarks
1 Supply Voltage VCC 4.75 5.0 5.25 V
2 Supply Voltage VDD 3.13 3.3 3.47 V
3 Supply Voltage VEE -4.94 -5.2 -5.45 V
4 Supply Current ICC - - 0.8 A +5 V
5 Supply Current IDD - - 2.0 A +3.3 V
6 Supply Current IEE - - 1.8 A -5.2 V
7 Power Consumption PDS - - 14 W
8 Operating Temperature TC(Note) 25 (Note) °C Case
Note: Target specification is minimum of 0 and maximum of 65.
Table 3. DC Power Supply
No. Item Symbol Min. Typ. Max. Unit
1 Positive Supply Voltage Vcc +4.75 +5.00 +5.25 V
2 Negative Supply Voltage Vee -4.94 -5.20 -5.46 V
3 TEC Supply Voltage Vtt +3.15 +3.30 +3.45 V
4 Positive Supply Current Icc - - 400 mA
5 Negative Supply Current Iee - - 250 mA
6 TEC Supply Current Itt - - 1300 mA
7 Total Power Consumption Pc - - 6.5 W
Confidential: Preliminary Technical Data of TRM7953AN (Rev. 0.1, June 22, 2000) HITACHI
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Table 4. Optical Characteristics
No. Item Symbol Min. Typ. Max. Unit Remarks (Note 1)
1 Average Power Output Pf -3.5
-4.5 -
-+2.0
+2.0 dBm Point S, Beginning of
life
Point S, End of life
2 Extinction Ratio ER 10 - - dB
3 Optical Waveform - Satisfying the Mask - Note 2
4 Optical Output at
Shutdown - - - -40 dBm
5 Center Wavelength λc1531.9 - 1562.23 nm 200 GHz Spacing
6 Variation in Center
Wavelength ∆λ -0.25 +0.25 nm End of Life, TBD
7 Spectral Width
(-20 dB) ∆λ20 - - 0.5 nm
8 Side-mode
Suppression Ratio Sr 30 - - dB
Note 1. Transmit Data: NRZ at 2.488320 Gbit/s, Mark 50%, PRBS=223-1,
Power Supply Voltage: Vcc = 5.0±0.25 V, Vee = -5.2±0.26 V, Vtt = 3.3±0.16
Tc = 0 to 75°C
Note 2.
Fig. 4.1 Mask of Eye Diagram for the Optical Waveform through the 4th-order
Bessel Filter According to ITU-T G957
Confidential: Preliminary Technical Data of TRM7953AN (Rev. 0.1, June 22, 2000) HITACHI
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Note 3.
Fig 4.2 Optical Path Penalty Measurement Setup
Table 5 Input/Output Signal Interface
No. Item Min. Typ. Max. Unit Remarks
(Note 1)
1 Optical Connector FC-PC -
2 Data Input Impedance 50 ΩAC-coupled
Single 500 - 1000
3 Input Data Voltage Differential 300 - 1000 mV peak to peak
4 Clock Input Impedance 50 ΩAC-coupled
Single 500 - 1000
5 Input Clock Voltage Differential 300 - 1000 mV peak to peak
6 Input Clock Duty Cycle 40 50 60 %
7 Setup time - - 75 ps Note 2
8 Hold time - - 75 ps Note 2
9 Shutdown Command Interface TTL Level Active High - Note 3
10 Shutdown activation time - - 5 ms
11 Shutdown deactivation time - - 250 ms
High: Non-
clocked
mode
12 Clock Mode Select Interface TTL
Level: Low: Clocked
mode
- Note 4
13 Temperature Deviation Alarm TTL Level Active High - Note 5
14 Monitoring for LD bias current
(BIAS(+)) - 20 - mV/mA
15 Monitoring for back facet PD
current (BACK(+)) 450 500 550 mV Note 6
Note 1. Transmit Data: NRZ at 2.488320 Gbit/s, Mark 50%, PRBS=223-1,
Power Supply Voltage: Vcc = 5.0±0.25 V, Vee = -5.2±0.26 V, Vtt = 3.3±0.16
Tc = 0 to 75°C
TRM7953AN OBF OR
1 nm
Optical Bandwidth
ERD
PPG
Pr
0 dBm
100 km 100 km 100 km 100 km
B.T.B
0 dBm 0 dBm 0 dBm
Total Fiber Dispersion : 6400 ps/nm
OR : HITACHI Receiver (RCV7935AN)
Confidential: Preliminary Technical Data of TRM7953AN (Rev. 0.1, June 22, 2000) HITACHI
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Note 2.
Fig. 5.1 Setup Time and Hold Time
Note 3.
Fig. 5.2 Shutdown Command Interface
Note 4.
Fig. 5.3 Clock Mode Select Interface
Shutdown Command (SDC)
Comparator
Comparator
CLK, CLK
Data, Data
Confidential: Preliminary Technical Data of TRM7953AN (Rev. 0.1, June 22, 2000) HITACHI
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Note 5.
Fig. 5.4 Temperature Deviation Alarm Interface
Note 6.
Fig. 5.5 Monitoring for Back Facet PD Activation
500±50 (mV)
Confidential: Preliminary Technical Data of TRM7953AN (Rev. 0.1, June 22, 2000) HITACHI
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Table 6. Pin Configuration
Pin # Symbol I/O Logic Description Remarks
1 GND Ground
2 BACK(+) Monitoring for back facet PD current
3 BIAS(+) Monitoring for LD bias current
4 SDC Shutdown Command
5 SELC Clock mode select
6 GND Ground
7 TDA Temperature Deviation Alarm
8 NUC No User Connection
9 NUC No User Connection
10 NUC No User Connection
11 GND Ground
12 Vee Negative power supply
13 Vcc Positive power supply
14 Vtt TEC power supply
15 GND Ground
16 DATA True data input
17 GND Ground
18 DATA False data input
19 GND Ground
20 CLK True clock input
21 GND Ground
22 CLK False clock input
23 GND Ground
24 Vcc Positive power supply
Metal Case is at GND.
Confidential: Preliminary Technical Data of TRM7953AN (Rev. 0.1, June 22, 2000) HITACHI
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Mechanical Dimensions
Dimensions: mm
Tolerance : ±0.5 mm
■ Top view
■ Side view
■ Bottom view
Confidential: Preliminary Technical Data of TRM7953AN (Rev. 0.1, June 22, 2000) HITACHI
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Table 6. Optical Fiber
No. Item Specifications Unit
1Type SMF -
2 Mode Field Diameter 9.5 ±1µm
3 Cladding Diameter 125 ±3µm
4 Minimum Bending Radius 30 mm
5 Fiber Tensile Strength 9.8 N
5 Outer Diameter of Secondary Coating 0.9 ±0.1 mm
Table 7. Ordering Information
No. Production Code Center
Wavelength (nm) No. Production Code Center
Wavelength (nm)
00 TRM7953AN No Order 11 TRM7953AN4772 1547.72
01 TRM7953AN3190 1531.90 12 TRM7953AN4932 1549.32
02 TRM7953AN3347 1533.47 13 TRM7953AN5092 1550.92
03 TRM7953AN3504 1535.04 14 TRM7953AN5252 1552.52
04 TRM7953AN3661 1536.61 15 TRM7953AN5413 1554.13
05 TRM7953AN3819 1538.19 16 TRM7953AN5575 1555.75
06 TRM7953AN3977 1539.77 17 TRM7953AN5736 1557.63
07 TRM7953AN4135 1541.35 18 TRM7953AN5898 1558.98
08 TRM7953AN4294 1542.94 19 TRM7953AN6061 1560.61
09 TRM7953AN4453 1544.53 20 TRM7953AN6223 1562.23
10 TRM7953AN4612 1546.12
USER INFORMATION
Handling Precautions
CAUTION: Take proper electrostatic-discharge (ESD) precautions while handling these
devices. These devices are sensitive to ESD.
Laser Safety
This product complies with IEC 60825-1 Class 1.
Confidential: Preliminary Technical Data of TRM7953AN (Rev. 0.1, June 22, 2000) HITACHI
Document number: FOD-DS-00057
Document Category: Product Specifications (Data Sheet)
Revision: 0.1 (June 2000)
Product Name: TRM7953AN
STM-16 1.5 µm Optical Transmitter (for 200 GHz Spacing DWDM)
TRM7953AN
Revision History
Rev. Date Page/Line/Fig/Table Modification Note
0.1 June 22, 2000 - -
