Applications

QAMi5107

4/6

–

2 ASCs (UARTs) with Tx and Rx FIFOs

–

3 banks of 8-bit and 1 bank of 7-bit parallel I/O

–

1 smartcard interface and clock generator

–

2 SSCs for I²C /SPI master/slave interfaces

–

Infrared transmitter/receiver

–

Integrated VCXO

–

Low-power / RTC / watchdog controller

●

JTAG/TAP interface

2

Applications

The QAMi5107 is targeted at worldwide cable markets that use ITU-T J83 Annexes A/C or

DVB-C specifications. It provides a single chip solution for the following functions: QAM

demodulation, FEC, transport, descrambling, MPEG a/v decoding, CPU, graphics and

peripherals. Few external components are required to realize a complete STB solution

resulting in very low BOM cost. The QAMi5107 is perfectly suited for digital conversion of

existing analog networks as well as providing advanced security enhancements and system

cost down for designs currently using the QAMi5516 and STx5105/STx5107.

Figure 1.

QAMi5107 application diagram - low-cost Cable STB

QAMi5107

Cable

Flash

SDRAM

IR

Tx/Rx

Video

RGB, YC, Cvbs

ST8024

E2 PROM

Smartcard

PIO

IF

TSOut

TSIn

FMI

LMI

Audio L/R

Tuner