Hybrid TV Tuner

Copyright © 2012 by Silicon Laboratories

12.19.12

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.

Si2157

Worldwide Digital and Analog TV Tuner

Selection Guide

Selected Electrical Specifications

Parameter

Test Condition

Typ

Unit

Supply voltage

1.8 and 3.3, or only 3.3

V

Total Power Consumption

ATV Mode, XOUT Disabled

496

mW

RF Input Frequency Range

42 to 870

MHz

NF, terrestrial*

VHF-L

4.0

dB

VHF-H

3.7

dB

UHF

3.8

dB

Return Loss*

Terrestrial mode

3

dB

Cable mode

9

dB

Wideband IIP3*

VHF-H, N

+5

dBm

Inband IIP3*

VHF-H, N

–6

dBm

LO Phase Noise at 860 MHz

1 kHz

–100

LO Integrated Phase Noise at 860 MHz

DSB: 125 Hz to 4 MHz

0.25

(-47)

(dBc)

Analog IF Spurious Distortion

S=P

–72

dB

ALIF/DLIF Output Center Frequency

channel BW=6 MHz

MHz

ALIF/DLIF Differential Output Voltage

Programmable

0.5 to 2.0

Vppd

*Note: Measured at the F-connector input of the Si2157 EVB and includes all connector, PCB, and front-end circuit

losses.

Part #

Description

Si2157

Worldwide hybrid TV tuner for NTSC, PAL/SECAM, ATSC/QAM, DVB-T2/T/C2/C, ISDB-T/C, DTMB

Pin Assignments

GND

PAD

23

24

25

18

19

20

21

10

11

12

13

2

3

4

5

26

27

17

9

6

16

14

7

28

VDD_L

ALIF_P

ALIF_N

DLIF_P

RSTB

RF_IP

ADDR

VDD_H

RF_IN

RF_SHLD

DLIF_N

AGC1

1

22

15

8 VDD_D

RF_REF

4x4 mm QFN-28 Package Information

4X cx c

eee

CA B

f

A

B

C

SE ATI NG PLANE

ddd

CA B

DE TAI L "A"

PIN#1 I .D.

(LA SER M ARK)

Pi n # 1 ID

e

Symbol

Min

Nom

Max

Unit

A

0.80

0.85

0.90

mm

D, E

4.00 BSC

mm

e

0.50 BSC

mm

f

3.50 BSC

mm