saa7825 NXP Semiconductors, saa7825 Datasheet - Page 77

• Manufacturer Part Number: saa7825
• Description: Cd Audio Decoder, Digital Servo And Filterless Dac With Integrated Pre-amp And Laser Control
• Manufacturer: NXP Semiconductors

Philips Semiconductors
13 OPERATING CHARACTERISTICS (MICROCONTROLLER INTERFACE TIMING)
V
2003 Aug 13
Microcontroller interface timing (4-wire bus mode; writing to decoder registers 0 to F; reading Q-channel
subcode and decoder status); see Figs.35 and 36; note 1
I
t
t
t
t
R
t
t
t
W
t
t
t
t
Microcontroller interface timing (4-wire bus mode; servo commands); see Figs.35 and 37; note 2
I
t
t
t
t
R
t
t
t
t
NPUTS
CL
CH
r
f
dRD
PD
dRZ
suD
hD
suCR
dWZ
NPUTS
L
H
r
f
dLD
PD
dLZ
suCLR
DD
EAD MODE
EAD MODE
CD audio decoder, digital servo and filterless
DAC with integrated pre-amp and laser control
SYMBOL
RITE MODE
= 1.65 to 1.95 V; V
SCL
SCL
(C
(C
AND
AND
(C
L
L
input clock LOW time
input clock HIGH time
input rise time
input fall time
delay time RAB to
SDA valid
propagation delay
SCL to SDA
delay time RAB to
SDA high-impedance
set-up time SDA to
SCL
hold time SCL to SDA
set-up time SCL to
RAB
delay time SDA to
RAB high-impedance
input LOW time
input HIGH time
input rise time
input fall time
delay time SILD to
SDA valid
propagation delay
SCL to SDA
delay time SILD to
SDA high-impedance
set-up time SCL to
SILD
L
= 20 pF)
= 20 pF)
RAB
SILD
= 20 pF)
PARAMETER
SS
= 0 V; T
amb
= 0 to 70 C; unless otherwise specified.
note 2
CONDITIONS
480/n + 20
480/n + 20
720/n
20
240/n + 20
0
710
710
480
77
MIN.
NORMAL MODE
720/n
20
480/n
480/n
50
960/n + 20
50
960/n + 20
240
240
25
950
50
MAX.
2400/n + 20
2400/n + 20
720/n + 20
20
1200/n + 20
0
710
710
480
LOCK-TO-DISC MODE
MIN.
720/n
Objective specification
480/n
480/n
50
4800/n + 20
50
4800/n + 20 ns
240
240
25
950
50
SAA7825
MAX.
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
UNIT