si2155 Silicon Laboratories, si2155 Datasheet

si2155

Manufacturer Part Number

si2155

Description

Worldwide Cost Efficient Tv Tuner Ic For Analog And Digital Standards

Manufacturer

Silicon Laboratories

Datasheet

1.SI2155.pdf (2 pages)

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Description

The Si2155 integrates a complete hybrid TV tuner

supporting all worldwide terrestrial and cable TV

standards. Leveraging Silicon Labs’ field proven

digital low-IF architecture, the Si2155 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.

Compared with competing silicon tuners and discrete

MOPLL-based tuners, the Si2155 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.

The Si2155 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 Si2155 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.

DVB-T/C demodulator creates a complete terrestrial

and cable DVB-T/C receiver plus PAL/SECAM tuner.

Worldwide TV Tuner IC

nterfacing the Si2155 seamlessly with the Si2165

ANTENNA

INPUT

Balun

1.8 V

3.3 V

RF_IN

RF_IP

Si2155

AGC

LDO

Worldwide Cost Efficient TV Tuner IC for Analog and Digital Standards

SYNTH

FREQ

0 / 90

PGA

XOSC

AGC

Features

- Worldwide hybrid TV tuner

- Compliance to A/74, NorDig, D-Book, C-Book,

- Best-in-class real-world reception

- Highly integrated, lowest BOM

- No alignment, tuning or calibration required

- Digital low-IF architecture

- Flexible output interface

- 3.3 and 1.8 V power supplies

- Standard CMOS process technology

- 5 x 5 mm, 32-pin QFN package

- RoHS compliant

Applications

- Hybrid ½-NIM

- iDTV (Integrated Digital TV)

- Digital terrestrial and cable STB

- Hybrid PVR and DVD recorder

ADC

ARIB, EN55020, OpenCable™ specifications

Analog TV: NTSC, PAL/SECAM

Digital TV: ATSC/QAM, DVB-T/T2/C, ISDB-T/C,

DTMB

42-870 MHz frequency range

Exceeds discrete MOPLL-based tuners

No SAW filters or wirewound inductors required

Integrated LNAs and complete tracking filters

Integrated channel select filters

ALIF to analog TV demodulator or SoC

DLIF to digital TV demodulator or SoC

DEMOD

FILTER

LOW-IF

DSP

ATV

AGC

DLIF

AGC

ALIF

RSTB

INTB

SDA

SCL

ADDR

Si2155

DEMOD

DTV

ATV

SoC

8.2.11

Related parts for si2155

si2155 Summary of contents

Page 1

... Description The Si2155 integrates a complete hybrid TV tuner supporting all worldwide terrestrial and cable TV standards. Leveraging Silicon Labs’ field proven digital low-IF architecture, the Si2155 maintains the unmatched performance and design simplicity of the Si2153 while further reducing footprint size and bill of materials cost ...

Page 2

... DLIF Output Center Frequency DLIF Differential Output Voltage Swing ALIF Output Center Frequency Analog IF Spurious Distortion ALIF Differential Output Voltage Swing *Note: Measured at the F-connector input of the Si2155 reference design and includes all connector, PCB, and front-end circuit losses. Pin Assignments 24 23 ...

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