Si2161-C1-FM Silicon Laboratories Inc, Si2161-C1-FM Datasheet
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Si2161-C1-FM
Manufacturer Part Number
Si2161-C1-FM
Description
Multimedia Misc DVB-T DEMODULATOR 5x6x0.75mm
Manufacturer
Silicon Laboratories Inc
Datasheet
1.SI2161-C1-FM.pdf
(2 pages)
Specifications of Si2161-C1-FM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Description
The Si2161 is a compact, standalone DVB-T digital TV
demodulator ideally matching Silicon Labs’ Si2170/1/2 new
hybrid silicon tuner product family. The analog front-end consists
of two ADCs with wide dynamic range (12-bit) to allow operation
with standard IF (~36 MHz), Low-IF, or Zero-IF inputs. This
enables the use of the Si2161 with any TV tuner, either metal can
or silicon tuner based.
The demodulator supports all modes of DVB-T (EN 300 744),
including hierarchical modes. In addition to DVB-T's 2 K and 8 K
FFT modes, the Si2161 also includes a 4 K FFT mode, “native”
and “in-depth” deinterleavers, and extended TPS to be compliant
with DVB-H (EN 300 744 Annex F). The Si2161 can then receive
DVB-H programs in fixed receiver applications (without decoding
DVB-H's additional MPE FEC layer).
An
Sophisticated on-chip algorithms ensure optimum reception
even under difficult channel conditions, such as echoes outside
the guard interval, pre-echoes, or strong impulse noise. For
ease-of-use, DSP firmware is preloaded into ROM (device is
immediately active at powerup). Nevertheless, there is a
possibility of downloading additional patch code via the I
interface, e.g. to adjust the demodulator to unexpected
conditions or reception impairments.
The Si2161 supports ultra-fast channel scanning for VHF/UHF
terrestrial DTV channels, thanks to proprietary features. For
supported tuners, the complete algorithm for fast channel scan,
QuickScan, is provided as a downloadable patch file. QuickScan
runs on the embedded DSP to limit the host CPU burden.
Serial or parallel master MPEG TS output modes are supported.
Furthermore, a TS slave parallel mode is available via a GPIF
port and provides a glueless interface to Silicon Labs' MCU
devices with embedded USB interface. The user can optionally
program a 32-PID hardware filter to reduce the output TS bit
rate.
An internal I
This provides a “quiet” I
A maximum of six general-purpose inputs/outputs are available;
three GPIOs also feature / and interrupt output capabilities.
Best-in-class demodulation performance is achieved while still
maintaining very low-power operation.
The Si2161 guarantees a low-cost system implementation due to
its minimal BOM and very small package footprint.
Digital TV Demodulator
embedded
2
C pass-through logic switch acts as an I
32-bit
2
C bus to the RF front end.
DSP
TUN_SDA
TUN_SCL
ADC_QP
ADC_QN
RF_AGC
4 MHz
ADC_IN
ADC_IP
IF_AGC
or
RSSI
16,20,24,27 MHz
controls
SWITCH
12-bit
12-bit
Dual
AGC
ADC
ADC
ADC
8-bit
I
2
C
Copyright © 2009 by Silicon Laboratories
device
1.2, 3.3V
FRONT
& PLL
END
OSC
2
C repeater.
operation.
DEMOD
DVB-T
2
Si2161
C
EQUALI
DSP
ZER
Features
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Applications
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DVB-T (ETSI EN 300 744) demodulator and FEC decoder.
NorDig Unified 2.0, D-Book 4.0 compliant.
Suitable for low-power design: 130 mW (typical, 36 MHz IF
sampling mode).
Dual 12-bit ADCs: accept 1
6, 7, or 8 MHz channel bandwidths.
DSP-based synchronization and control with embedded ROM
code avoids the need for code download at startup.
Supports patch code downloads for in-field upgradeability.
Independent AGC controls (for IF & RF),
plus RSSI measurement.
ACI filtering: fixed 8 MHz SAW filter even for 7 MHz channel.
Advanced performance for SFN networks.
Impulsive noise protection algorithm.
Ultra-fast automatic UHF/VHF band scanning (QuickScan).
Master TS output modes, parallel or serial
(with tri-state function).
Slave TS parallel output: external device polls data from an
embedded FIFO, providing a seamless interface to any USB
controller.
On-chip PID filtering to reduce TS output bit rate.
Up to six GPIOs.
Two 5 V-tolerant I
with on-chip I
4, 16, 20, 24, or 27 MHz clock/crystal reference.
3.3 and 1.2 V power supplies only.
Very compact QFN-36, 5 x 6 mm, RoHS-compliant package.
Digital terrestrial STB, NIM, and iDTV set
Digital terrestrial PC-TV tuner peripheral
Digital Picture Frame with TV front-end
Portable DVB-T receiver/DVD player/PMP
Personal Video Recorder (DVD or HDD-based)
FEC
RESETB
FILTER
CTRL
PID
TS
µP
I/F
I/F
2
C repeater.
GPIO
I
I/F
2
2
C
C control buses (host-side, tuner-side)
TS_SYNC
TS_VAL
TS_ERR
TS_CLK
TS_DATA
HOST_SDA
HOST_SCL
DVB-T Demodulator
GPIO0..5
st
IF, low IF, or zero-IF inputs in 5,
8
Si2161
6.18.2009
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Si2161-C1-FM Summary of contents
Page 1
... The analog front-end consists of two ADCs with wide dynamic range (12-bit) to allow operation with standard IF (~36 MHz), Low-IF, or Zero-IF inputs. This enables the use of the Si2161 with any TV tuner, either metal can or silicon tuner based. The demodulator supports all modes of DVB-T (EN 300 744), including hierarchical modes. In addition to DVB-T and 8 K FFT modes, the Si2161 also includes FFT mode, “ ...
Page 2
... SLP QFN-36 Package Information 18 TS_DATA[6] 17 TS_DATA[5] TS_DATA[4]/GPIO_5 16 15 VDD_VIO 14 TS_DATA[3]/GPIO_4 13 TS_DATA[2]/GPIO_3 12 TS_DATA[1]/GPIO_1 11 TS_DATA[0]/TS_SER 9 10 Copyright © 2009 by Silicon Laboratories Si2161 DVB-T Demodulator Typ Max Unit 25 85 °C — — 400 kHz — MHz 1.2 1. ...