SAA7370 Datasheet, PDF (44/60 Pages) NXP Semiconductors – Digital servo processor and Compact Disc decoder CD7

Philips Semiconductors
Digital servo processor and
Compact Disc decoder (CD7)
Product specification
SAA7370
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Servo analog part (V_DD = 5 V; V_SS = 0 V; T_amb = 25 °C)
PINS D1 TO D4, R1, R2, V_RH, V_RL AND I_refT
I_refT
R_IrefT
V_IrefT
input reference current (pin 10)
external resistor on pin 10
voltage on reference current input
(pin 10)
1.935
−
220
−
−
1.2
5.45
µA
620
kΩ
−
V
I_D(max)
maximum input current for central note 2
diode input signal
3.871
−
10.9
µA
I_R(max)
maximum input current for satellite note 2
diode input signal
1.935
−
5.45
µA
V_RL
LOW level reference voltage
0
0
0
V
V_RH
HIGH level reference voltage
output state 0;
−
0.5
−
V
note 3
output state v;
−30%
0.5 × 10^v/ +30%
V
note 3
44.4
output state 31; −
2.5
−
V
note 3
(THD+N)/S total harmonic distortion plus noise at 0 dB; note 4 −
−50
−45
dB
S/N
signal-to-noise ratio
−
55
−
dB
PSRR
G_tol
|G_v|
α_cs
power supply rejection at V_DDA2
gain tolerance
variation of gain between channels
channel separation
note 5
note 6
−
45
−12
0
−
−
−
60
−
dB
+12
%
2
%
−
dΒ
Digital inputs
INPUTS: RESET, V1, V2, SELPLL (CMOS INPUT WITH PULL-UP RESISTOR AND HYSTERESIS)
V_thr(sw)
V_thf(sw)
V_hys
R_I(pu)
C_in
t_resL
switching threshold rising
switching threshold falling
hysteresis voltage
input pull-up resistance
input capacitance
reset pulse width (active LOW)
V_i = 0 V
RESET only
−
−
0.8V_DDD V
0.2V_DDD −
−
V
−
0.33V_DDD −
V
−
50
−
kΩ
−
−
10
pF
1
−
−
µs
INPUTS: SCL, RAB, SILD AND RCK (CMOS INPUT)
V_IL
LOW level input voltage
V_IH
HIGH level input voltage
−0.3
−
0.7V_DDD −
0.3V_DDD V
V_DDD + 0. V
3
I_LI
input leakage current
C_in
input capacitance
V_i = 0 − V_DDD
−10
−
−
−
+10
µA
10
pF
1998 Feb 26
44