SAA7824 Datasheet, PDF (78/89 Pages) NXP Semiconductors – CD audio decoder, digital servo and filterless DAC with integrated pre-amp and laser control (PhonIC)

Philips Semiconductors
CD audio decoder, digital servo and filterless
DAC with integrated pre-amp and laser control
Product specification
SAA7824
SYMBOL
PARAMETER
CONDITIONS
NORMAL MODE
MIN.
MAX.
LOCK-TO-DISC MODE
MIN.
MAX.
UNIT
t_hCLR
hold time SILD to
SCL
830
−
830
−
ns
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
hold time SILD to
SCL
t_dPLP
delay between two
SILD pulses
t_dWZ
delay time SDA to
SILD high-impedance
0
−
0
−
ns
950
−
950
−
ns
480
−
480
−
ns
120
−
120
−
ns
70
−
70
−
ns
0
−
0
−
ns
Notes
1. The 4-wire bus mode microcontroller interface timing for writing to decoder 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.
tr
RAB
SCL
tr
t _dRD
SDA (SAA782X)
high-impedance
tf
VDD – 0.8 V
tf
t _CH
0.8 V
VDD – 0.8 V
tCL
t _PD
0.8 V
VDD – 0.8 V
0.8 V
t _dRZ
MBL451
Fig.36 4-wire microcontroller timing; read mode (Q-channel subcode and decoder status information).
2003 Oct 01
78