SI2156 [SILICON]
Video Tuner, 2-Band, 5 X 5 MM, ROHS COMPLIANT, QFN-32;
| 型号： | SI2156 |
| 厂家： | 
SILICON |
| 描述： | Video Tuner, 2-Band, 5 X 5 MM, ROHS COMPLIANT, QFN-32 放大器 射频 商用集成电路 |
| 文件： | 总2页 (文件大小：55K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Si2156
Worldwide High-Performance TV Tuner IC for Analog and Digital Standards
Description
Features
- Worldwide hybrid TV tuner
The Si2156 integrates a complete hybrid TV tuner
supporting all worldwide terrestrial and cable TV
standards. Leveraging Silicon Labs’ field proven
digital low-IF architecture, the Si2156 maintains the
unmatched performance and design simplicity of the
Si2153 while further reducing footprint size and bill of
materials cost. No external LNAs, tracking filters,
wirewound inductors, or SAW filters are used.
- Analog TV: NTSC, PAL/SECAM
- Digital TV: ATSC/QAM, DVB-T/T2/C, ISDB-T/C,
DTMB
- 42-1002 MHz frequency range
- Compliance to A/74, NorDig, D-Book, C-Book,
ARIB, EN55020, OpenCable™ specifications
- Best-in-class real-world reception
- Exceeds discrete MOPLL-based tuners
- Highly integrated, lowest BOM
- No SAW filters or wirewound inductors required
- Integrated LNAs and complete tracking filters
- No alignment, tuning or calibration required
- Digital low-IF architecture
Compared with competing silicon tuners and discrete
MOPLL-based tuners, the Si2156 delivers superior
picture quality and a higher number of received
stations in crowded and near/far real-world reception
conditions. The high linearity and low noise RF
front-end delivers superior blocking performance and
higher sensitivity in the presence of strong undesired
channels and interference.
- Integrated channel select filters
- Flexible output interface
- ALIF to analog TV demodulator or SoC
- DLIF to digital TV demodulator or SoC
- 3.3 and 1.8 V power supplies
- Standard CMOS process technology
- 5 x 5 mm, 32-pin QFN package
- RoHS compliant
The Si2156 integrates the complete signal path from
antenna input to IF outputs for both analog and digital
transmission standards. Compared to traditional
discrete MOPLL-based tuners, the Si2156 eliminates
hundreds of external components including external
LNAs, tracking filter varactors and inductors (unlike
competing silicon tuners), and SAW filters, resulting in
the simplest, lowest-cost BOM for a hybrid TV tuner.
Applications
- Hybrid ½-NIM
- iDTV (Integrated Digital TV)
- Digital terrestrial and cable STB
- Hybrid PVR and DVD recorder
Interfacing the Si2156 seamlessly with the Si2165
DVB-T/C demodulator creates a complete terrestrial
and cable DVB-T/C receiver plus PAL/SECAM tuner.
AGC
Si2156
ANTENNA
INPUT
DSP
I
DTV
DEMOD
PGA
DLIF
ADC
RF_IP
RF_IN
Balun
AGC
ALIF
Q
ADC
ATV
DEMOD
FILTER
PGA
IF
RSTB
INTB
RF
AGC
0 / 90
LOW-IF
AGC
AV
SoC
SDA
SCL
1.8 V
3.3 V
FREQ
SYNTH
LDO
XOSC
ADDR
Worldwide TV Tuner
Copyright © 2011 by Silicon Laboratories
9.20.11
Si2156
Worldwide High-Performance TV Tuner IC for Analog and Digital Standards
Selected Electrical Specifications
(VDD_H = 3.3 V, VDD_L = 1.8 V, VDD_D = 1.8 V, TA = 25 °C)
Parameter
Supply Voltage
Test Condition
Typ
1.8 and 3.3
0.98 | 0.87
42 to 1002
4.0
Unit
V
Total Power Consumption
RF Input Frequency Range
Noise Figure*
VHF bands | UHF bands
W
MHz
dB
max gain
Wideband IIP3*
N±18,±36; max RF gain
N±1,±2; max RF gain
+18
dBm
dBm
Inband IIP3*
–7
LO Phase Noise at 860 MHz
125 Hz | 250 Hz | 1 kHz | 10 kHz | 100 kHz –83 | –91 | –96 | –95 | –104 dBc/Hz
LO Integrated Phase Noise
at 860 MHz
0.4
(–43)
deg. rms
(dBc)
DSB: 125 Hz to 4 MHz
Adjacent Channel Attenuation
N±1; RF input* to DLIF output
80
dB
DLIF Output Center Frequency
DLIF Differential Output Voltage Swing
ALIF Output Center Frequency
Analog IF Spurious Distortion
channel BW = 6 MHz | 7 MHz | 8 MHz 4 to 7 | 4.5 to 6.5 | 5 to 6
programmable 0.5 to 2.0
channel BW = 6 MHz | 7 MHz | 8 MHz 4 to 7 | 4.5 to 6.5 | 5 to 6
MHz
Vppd
MHz
dBc
S = P – 6 dB
–78
ALIF Differential Output Voltage Swing
programmable
0.5 to 2.0
Vppd
*Note: Measured at the F-connector input of the Si2156 reference design and includes all connector, PCB, and front-end
circuit losses.
Pin Assignments
5 x 5 mm QFN-32 Package
24 23 22 21 20 19 18 17
16 XOUT
GND 25
GND 26
15
14
BCLK
GND 27
VDD_L
13 DLIF_P
12 DLIF_N
11 ALIF_P
10 VDD_H
GPIO1 28
INTB/GPIO2 29
RSTB 30
GND_PAD
GND 31
9
VDD_IO 32
ALIF_N
Symbol
Min
Nom
0.85
Max
Unit
mm
mm
mm
1
2
3
4
5
6
7
8
A
D, E
e
0.80
0.90
5.00 BSC
0.50 BSC
Selection Guide
Part #
Description
Worldwide high performance TV tuner IC for analog and digital standards:
NTSC, PAL/SECAM, ATSC/QAM, DVB-T/T2/C, ISDB-T/C, DTMB
Si2156
Worldwide TV Tuner
Copyright © 2011 by Silicon Laboratories
9.20.11
Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.
Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders.
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Worldwide hybrid TV tuner Analog TV NTSC, PAL SECAM Digital TV ATSC QAM, DVB-T T2 C, ISDB-T C, DTMB
SILICON
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