U2739M-B Datasheet, PDF (6/69 Pages) ATMEL Corporation – DAB One-Chip Channel- and Source Decoder

U2739M-B
1.5 Interfaces
D Source decoder output interface: I²S and SPDIF
D Data decoder output interface: V24 or HSSO
D Channel decoder output interface: RDI and SFCO
D Microcontroller interface: I²C/L3
D RDI:
– Extended high capacity mode
– IEC 958 format
– RDI control channel (RCC)
D SFCO simple full capacity output:
– window-, serial sub-channel identifier (SbChId)-,
data-, error- and clock line
– 3.072 MHz burst mode interface
D 10-bit ADC interface:
– ADC sampling clock generation
– ADC binary or 2’s complement format selection
– support of several intermediate frequencies
D DSP OAK core bootstrap ROM interface
D Voltage controlled reference oscillator (VCXO)
interface
D Time de-interleaver SRAM (4 Mbit) interface
D High speed serial output HSSO (PAD, DD1, DD2,
CIR) interface, 3-line serial burst mode interface
2 Functional Block Diagram
SRAM
ADC
TUNER
PWM
IQ splitting
filtering
AFC
AGC
De-
modulation
FSYNC
generation
W_AGC
FSYNC
FS_IN
SLI
Time
synchro–
nization
AMD
dF
Frequency
synchro–
nization
De-
interleaving
Decodeing
TII decoding
(USE)
Status
generation
Channel
decoder
VCXO
tank
XO
UNIT
Audio
source
decoding
PAD
extraction
Source decoder
Data
decoder 1
(FIDC)
Data
decoder 2
(AIC (USE))
Data decoder
ROM
BOOT
UNIT
U2739M-B
HSSO
MC
interface
MC
memory
MC interface
MC
Figure 2. Functional block diagram
RDI
controller
RDI interface
SFCO
I2S
DAC
SPDIF
V24/RS232
RDI_TX
RDI_RX
6 (69)
Rev. A1, 22-May-01