U2739M-B Datasheet, PDF (1/69 Pages) ATMEL Corporation – DAB One-Chip Channel- and Source Decoder

U2739M-B
DAB One-Chip Channel- and Source Decoder
Description
The U2739M-B is an integrated circuit in advanced
CMOS technology for demodulation and decoding of a
DAB signal according to ETS 300 401. The channel
decoder part includes the main features OFDM
demodulation & decoding and time & frequency synchro-
nization algorithms, using the embedded OAK DSP core.
The source decoder consists of an audio and a data
decoder part. The audio source decoder supports
ISO MPEG 1,2 layer 2 and the data decoder offers
2 independent packet mode decoders.
Several standard interfaces, like I²C/L3, I²S, SPDIF or
RDI are implemented to offer a flexible utilization.
Moreover the U2739M-B includes a mechanism to
replace respectively extend certain software modules by
using a special boot mode (so-called USE). For example,
the time & frequency synchronization modules can be
replaced by down-loading the corresponding user
software algorithms to the OAK DSP core.
Electrostatic sensitive device.
Observe precautions for handling.
Block Diagram
RAM
SLI, WAGC
Tuner
ADC
ROM
Channel
decoder
MC
interface
U2739M–A
Audio
decoder
Data
decoder
I2S
DAC
SPDIF
V24/RS232
RDI
interface
HSSO
SFCO RDI
MCU
Figure 1. Block diagram
Ordering Information
Extended Type Number
Package
U2739M-BFT
T–PQFP–G100
Tray
U2739M-BFC
CQFP144
Tray
Rev. A1, 22-May-01
Remarks
1 (69)