SAA7373 Datasheet, PDF (52/60 Pages) NXP Semiconductors – Digital servo processor and Compact Disc decoder CD7

Philips Semiconductors
Digital servo processor and Compact Disc
decoder (CD7)
Product specification
SAA7373
SYMBOL
PARAMETER
CONDITIONS
NORMAL MODE
MIN.
MAX.
LOCK-TO-DISC MODE
MIN.
MAX.
UNIT
READ MODE (C_L = 20 pF)
t_dLD
delay time SILD to
SDA valid
t_PD
propagation delay
SCL to SDA
t_dLZ
delay time SILD to
SDA high-impedance
t_sCLR
set-up time SCL to
SILD
t_hCLR
hold time SCL to SILD
WRITE MODE (C_L = 20 pF)
t_sD
set-up time SDA to
SCL
t_hD
hold time SCL to SDA
t_sCL
set-up time SCL to
SILD
t_hCL
t_dPLP
hold time SILD to SCL
delay between two
SILD pulses
t_dWZ
delay time SDA
high-impedance to
SILD
−
25
−
−
950
−
−
50
−
480
−
480
830
−
830
0
−
0
950
−
950
480
−
480
120
−
120
70
−
70
0
−
0
25
ns
950
ns
50
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
µs
−
ns
Notes
1. The 4-wire bus mode microprocessor interface timing for writing to registers 0 to F, and reading Q-channel subcode
and decoder status, is a function of the overspeed factor ‘n’. In the lock-to-disc mode the maximum data rate is lower.
2. Negative set-up time means that the data may change after clock transition.
1998 Jul 06
52