Iref - Philips SAA7345 Datasheet

Philips Semiconductors
CMOS digital decoding IC with RAM for
Compact Disc
X8
11 MHz
clock output
R2
22 k
R3
2.2 k
X6
HFIN
C1
2.2 nF
(1) Diagram is for a 5 V application. For 3.4 V applications an additional resistor of 150 k should be added between IREF (pin 10) and ground.
(2) For crystal oscillator circuit see Fig.26.
1998 Feb 16
V
R6
2.2
C12
4.7 F
C13
(63 V)
100 nF
to DOBM transformer
C2 47 pF
10
11
C4 C3
100 nF 22 nF
(1)
V
R4
2.2
C6
4.7 F
(63 V)
100 nF
Fig.27 Typical SAA7345 application diagram.
V DD
44 43 42 41 40 39 38 37 36 35 34
V DD2
1
CL11
2
DOBM
3
V1
4
V2
5
TEST2
6
TEST1 SAA7345
7
ISLICE
8
HFIN
9
HFREF

IREF

V
DDA
V SSA
12 13 14 15 16 17 18 19 20 21 22
V DD
C11
C7 100
nF
(2)
33
Product specification
SAA7345
33
CFLG
32
RAB
micro-
31
controller
CL
interface
30
DA
29
CLA
28
PORE
27
KILL
26
V3
25
V4
24
V5
23
MOTO2
MOTOR
INTERFACE
MOTO1
to DAC
X9
16 MHz
clock output
MGA375 - 1