saa7825 NXP Semiconductors, saa7825 Datasheet - Page 76
saa7825
Manufacturer Part Number
saa7825
Description
Cd Audio Decoder, Digital Servo And Filterless Dac With Integrated Pre-amp And Laser Control
Manufacturer
NXP Semiconductors
Datasheet
1.SAA7825.pdf
(88 pages)
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Part Number:
saa7825H
Manufacturer:
PHILIPS
Quantity:
84
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Philips Semiconductors
12 OPERATING CHARACTERISTICS (I
V
Note
1. In the normal operating mode the I
2003 Aug 13
I
C
T
t
t
O
t
t
2
CH
CL
su
h
DDD
cy
S-bus timing (single speed
LOCK OUTPUT
CD audio decoder, digital servo and filterless
DAC with integrated pre-amp and laser control
UTPUTS
‘n’ is replaced by the disc speed factor ‘d’.
SYMBOL
= 1.65 to 1.95 V; V
:
PINS
:
WCLK, DATA
PIN
output clock period
clock HIGH time
clock LOW time
set-up time
hold time
SCLK (C
WCLK
SCLK
SS
DATA
PARAMETER
EF
= 0 V; T
L
AND
= 20 pF)
n); see Fig.34; note 1
EF (C
amb
2
S-bus timing is directly related to the overspeed factor ‘n’. In the lock-to-disc mode
= 0 to 70 C; unless otherwise specified.
L
2
= 20 pF)
S-BUS TIMING)
Fig.34 I
clock period T cy
t h
sample rate = f
sample rate = 2f
sample rate = 4f
sample rate = f
sample rate = 2f
sample rate = 4f
sample rate = f
sample rate = 2f
sample rate = 4f
sample rate = f
sample rate = 2f
sample rate = 4f
sample rate = f
sample rate = 2f
sample rate = 4f
2
S-bus timing diagram.
CONDITIONS
76
t CL
V
s
s
s
s
s
0.8 V
t su
DD
s
s
s
s
s
s
s
s
s
s
– 0.8 V
t CH
166/n
83/n
42/n
166/n
83/n
42/n
95/n
48/n
24/n
95/n
48/n
24/n
MIN.
MBG407
V
0.8 V
472.4/n
236.2/n
118.1/n
DD
TYP.
– 0.8 V
Objective specification
MAX.
SAA7825
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
UNIT
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