1. General description
The TDA18250 is a silicon tuner IC designed specifically for high definition cable Set-Top
Boxes (STB) supporting single streaming.
Used in conjunction with a digital channel demodulator, the TDA18250 covers all
worldwide digital cable standards.
•The TDA18250 ensures a low system cost as:
–Costly components such as low-noise amplifiers, Surface Acoustic Wave (SAW)
filters are eliminated from the system BOM
•The TDA18250 high-performance silicon tuner meets today’s digital cable TV
reception needs with:
–Low power consumption
–High linearity
–Low noise figure
•The TDA18250 ensures ease of use with:
–Easy on-board integration
–Efficient and effective PCB design
–Reduced external components
2. Features and benefits
RF frequency coverage up to 1002 MHz
Integrated wi de ba n d gain co ntrol
LOW IF (LIF) output
Single 3.3 V power supply
Low power consum ption
Multistandard cable receptions
Fully integrated IF selectivity, eliminating the need for external SAW filters
RF Loop-Through (LT)
Enhanced RF and IF filters to increase selectivity and adjacent channels filtering
Alignment free
Fully integrated oscillators:
No external oscillator components for reduced cost
16 MHz crystal oscillator output buffer for single crystal applications
Supports 2 tuner functions specifically aimed for PVR boxes:
1RF output to drive slave tuner
TDA18250HN
Cable Silicon Tuner
Rev. 6 — 22 December 2011 Product short data sheet
TDA18250HN_SDS All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product short data sheet Rev. 6 — 22 December 2011 2 of 8
NXP Semiconductors TDA18250HN
Cable Silicon Tuner
I2C-bus provides:
3.3 V microcontroller compatibility
Received Signal Strength Indicator (RSSI) data access
Die temperature sensor data access
Lead-free (Pb) manufacturing
3. Quick reference data
4. Ordering information
Table 1. Quick reference data
Symbol Parameter Conditions Min Typ Max Unit
fRF RF frequency edge 42 - 1002 MHz
Pi(max) maximum input
power -106-dBV
NFtun tuner noise figure maximum gain
fRF from 42 MHz to
862 MHz - 56dB
fRF > 862 MHz - 5.5 - dB
nphase noise worst case in the RF
frequency range
10 kHz - 85 - dBc/Hz
100 kHz - 105 - dBc/Hz
P power dissipation - 0.91 - W
image image rejection 50 62 - dB
Table 2. Ordering information
Type number Package
Name Description Version
TDA18250HN/C1 HVQFN48 plastic thermal enhanced very thin quad flat package;
no leads; 48 terminals; body 7 70.85 mm SOT619-1
TDA18250HN_SDS All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product short data sheet Rev. 6 — 22 December 2011 3 of 8
NXP Semiconductors TDA18250HN
Cable Silicon Tuner
5. Block diagram
6. Limiting values
[1] It withstands class IV of JEDEC standard.
7. Abbreviations
Fig 1. Block diagram
001aam176
TDA18250HN
3
46
AGC1 AGC2 IF
SELECTIVITY IF
AGC
22
AS
RF_IN
LT
IFO_P
IFO_N
VIFAGC
31
30
XTO_P
XTO_N
19
20
32
LEVEL
CONTROL
I
2
C-BUS
INTERFACE
mixer
35
SCL
36
SDA
CRYSTAL
OSCILLATOR
16
XTAL_P
17
XTAL_N
SYNTHESIZER
14
VTLO
15
CPLO
6
MTO
RF
SELECTIVITY
Table 3. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
VCC supply voltage 0.3 +3.6 V
VIinput voltage VCC < 3.3 V 0.3 VCC + 0.3 V
VCC > 3.3 V 0.3 +3.6 V
VESD electrostatic discharge
voltage EIA/JESD22-A114 (HBM) 2 - kV
EIA/JESD22-C101-C (FCDM) [1] 1.5 - kV
Table 4. Abbreviations
Acronym Description
AGC Automatic Gain Control
BOM Bill Of Materials
FCDM Field-induced Charged Device Model
HBM Human Body Model
IC Integrated Circuit
IF Intermediate Frequency
JEDEC Joint Electron Device Engineering Council
LIF LOW IF
TDA18250HN_SDS All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product short data sheet Rev. 6 — 22 December 2011 4 of 8
NXP Semiconductors TDA18250HN
Cable Silicon Tuner
8. Revision history
LT Loop-Through
PCB Printed-Circuit Board
PVR Personal Video Recorder
RF Radio Frequency
RSSI Received Signal Strength Indicator
SAW Surface Acoustic Wave
SCL Serial CLock
SDA Serial DAta
STB Set-Top Box
Table 4. Abbreviations …continued
Acronym Description
Table 5. Revision history
Document ID Release date Data sheet status Change notice Supersedes
TDA18250HN_SDS v.6 20111222 Product short data sheet - TDA18250HN_SDS v.5
Modifications: •Section 1: updated
•Section 2: updated
•Table 1: updated
TDA18250HN_SDS v.5 20110615 Product short data sheet - TDA18250HN_SDS v.4
TDA18250HN_SDS v.4 20110504 Preliminary short data sheet - TDA18250HN_SDS v.3
TDA18250HN_SDS v.3 20110413 Preliminary short data sheet - TDA18250HN_SDS v.2
TDA18250HN_SDS v.2 20110114 Preliminary short data sheet - TDA18250HN_SDS v.1
TDA18250HN_SDS v.1 20100812 Objective short data sheet - -
TDA18250HN_SDS All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product short data sheet Rev. 6 — 22 December 2011 5 of 8
NXP Semiconductors TDA18250HN
Cable Silicon Tuner
9. Legal information
9.1 Data sheet status
[1] Please consult the most recently issued document before initiating or completing a design.
[2] The term ‘short data sheet’ is explained in section “Definitions”.
[3] The product status of de vice(s) descr ibed in th is docume nt may have cha nged since this docume nt was publis hed and ma y dif fer in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.nxp.com.
9.2 Definitions
Draft — The document is a draft version only. The content is still under
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customer(s). NXP does not accept any liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those given in
the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanent ly and irreversibly affect
the quality and reliability of the device.
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products are sold subject to the general terms and conditions of commercial
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Document status[1][2] Product status[3] Definition
Objective [short] data sheet Development This document contain s data from the objective specification for product development.
Preliminary [short] dat a sheet Qualification This document contains data from the preliminary specification.
Product [short] dat a sheet Production This document contains t he product specification.
TDA18250HN_SDS All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product short data sheet Rev. 6 — 22 December 2011 6 of 8
NXP Semiconductors TDA18250HN
Cable Silicon Tuner
Quick reference data — The Quick reference data is an extract of the
product data given in the Limiting values and Characteristics sections of this
document, and as such is not complete, exhaustive or legally binding.
Non-automotive qualified products — Unless this data sheet expressly
states that this specific NXP Semiconductors product is automotive qualified,
the product is not suitable for automotive use. It i s neit her qua lified nor tested
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Semiconductors accepts no liability for inclusion and/or use of
non-automotive qualified products in automotive equipment or applicati ons.
In the event that customer uses the product for design-in and use in
automotive applications to automot ive specifications and standard s, customer
(a) shall use the product without NXP Semiconductors’ warranty of the
product for such automotive applications, use and specifications, and (b)
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liability, damages or failed produ ct cl aims resulting from custome r design and
use of the product for automotive applications beyond NXP Semiconductors’
standard warranty and NXP Semiconductors’ product specifications.
9.4 Trademarks
Notice: All refe renced brands, produc t names, service names and trademarks
are the property of their respect i ve ow ners.
I2C-bus — logo is a trademark of NXP B.V.
10. Contact information
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
TDA18250HN_SDS All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product short data sheet Rev. 6 — 22 December 2011 7 of 8
NXP Semiconductors TDA18250HN
Cable Silicon Tuner
11. Tables
Table 1. Quick reference data . . . . . . . . . . . . . . . . . . . . .2
Table 2. Ordering information . . . . . . . . . . . . . . . . . . . . .2
Table 3. Limiting values . . . . . . . . . . . . . . . . . . . . . . . . . .3
Table 4. Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 5. Revision history . . . . . . . . . . . . . . . . . . . . . . . . . 4
12. Figures
Fig 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
NXP Semiconductors TDA18250HN
Cable Silicon Tuner
© NXP B.V. 2011. All rights reserved.
For more information, please visit: http://www.nxp.co m
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 22 December 2011
Document identifier: TDA18250HN_SDS
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
13. Contents
1 General description. . . . . . . . . . . . . . . . . . . . . . 1
2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1
3 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2
4 Ordering information. . . . . . . . . . . . . . . . . . . . . 2
5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 3
7 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . 3
8 Revision history. . . . . . . . . . . . . . . . . . . . . . . . . 4
9 Legal information. . . . . . . . . . . . . . . . . . . . . . . . 5
9.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 5
9.2 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
9.3 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
9.4 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
10 Contact information. . . . . . . . . . . . . . . . . . . . . . 6
11 Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
12 Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
13 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
