STV0299B View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STV0299B

QPSK/BPSK LINK IC

STMicroelectronics 

STV0299B

2 BLOCK DIAGRAM

Nyquist &

Interpolation

Filter

AGC2

Timing

Recovery

Derotator

AGC

VDDA

VTOP

IN/IP

QN/QP

VBOT

VSSA

CLK_IN/XTAL_IN

AUX_CLK

XTAL_OUT

F22/DiSEqC

SCL

SDA

AGC1

Offset

Comp.

ADCs

Clock

Generator

22 kHz

Tone

DiSEqC

Interface

I2C

Interface

Carrier Lock

Indicator

Timing

DCO

Timing

Lock

Indicator

C/N

Indicator

Error

Monitoring

General

Purpose

Functions

Viterbi Decoder

Deinterleaver

Reed-Solomon

Decoder

Energy

Descrambler

D/P

ERROR

STR_OUT

CLK_OUT

SDAT SCLT DAC IP0 OP0[2:0] D[7:0] VDD_3.3V VDD VSS

3 SYSTEM CHARACTERISTICS

Performances

The following given parameters are for indication

purposes only.

Carrier Loop Tracking Range:

• ±fM_CLK/2

Carrier Loop Capture Range (C/N>=4 dB):

• up to ± 5% fs in less than 100 Ksymbols

• up to ± 2% fs in less than 10 Ksymbols

C/N Threshold (lowest C/N at which capture is

possible) = 1 dB.

Timing Loop Capture Range (C/N>=2 dB):

• up to ±250 ppm in less than 100 Ksymbols

• conventions used for the above characteristics

are:

fsampling = fm_clk = fmaster_clock

fs = fsymbol

C/N = Carrier/Noise = -E----b-- x2 xPR

No

PR = Puncture Rate

6/36

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