saa6581 NXP Semiconductors, saa6581 Datasheet - Page 3

• Manufacturer Part Number: saa6581
• Description: Rds/rbds Demodulator
• Manufacturer: NXP Semiconductors

Philips Semiconductors
BLOCK DIAGRAM
2003 Oct 10
handbook, full pagewidth
RDS/RBDS demodulator
Pin numbers for the SAA6581HN are given in parenthesis.
multiplex
5 V
input
100 nF
C2
330 pF
C1
V DDA
MPX
4 (12)
5 (13)
AND RESET
BANDPASS FILTER
SUPPLY
6 (16)
V SSA
POWER
8th ORDER
57 kHz
3 (9)
V ref
C3
2.2 F
SCOUT
Fig.1 Block diagram.
CONTROL
SAA6581
TCON
15 (2)
8 (20) 7 (18)
TEST
560 pF
C6
CIN
3
MODE
9 (21)
COMPARATOR
47 pF
CLOCKED
C4
OSCILLATOR
AND CLOCK
OSCI
13 (29)
Q1
14 (32)
OSCO
C5
56 pF
5 V
SIGNAL QUALITY
DEMODULATOR
DETECTOR
RDS/RBDS
V DDD
12 (28)
11 (27)
V SSD
(23) 10
(4) 16
(6) 2
(5) 1
Product specification
SAA6581
SYNC
RDCL
RDDA
QUAL
MHC651
C7
100 nF