參數(shù)資料
型號: SAA7372
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: Digital servo processor and Compact Disc decoder CD7
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝: 14 X 14 MM, 2.70 MM HEIGHT, PLASTIC, MS-022, SOT-393-1, QFP-64
文件頁數(shù): 51/60頁
文件大小: 323K
代理商: SAA7372
1998 Feb 26
51
Philips Semiconductors
Product specification
Digital servo processor and Compact Disc
decoder (CD7)
SAA7372
12 OPERATING CHARACTERISTICS (MICROCONTROLLER INTERFACE TIMING)
V
DD
= 3.4 to 5.5 V; V
SS
= 0 V; T
amb
=
10 to +70
°
C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
NORMAL MODE
LOCK-TO-DISC MODE
UNIT
MIN.
MAX.
MIN.
MAX.
Microcontroller interface timing (4-wire bus mode; writing to registers 0 to F; reading Q-channel subcode and
decoder status);
see Figs 33 and 34; note 1
I
NPUTS
SCL
AND
RAB
t
CL
t
CH
t
r
t
f
R
EAD MODE
(C
L
= 20 pF)
t
dRD
delay time RAB to SDA
valid
t
PD
propagation delay
SCL to SDA
t
dRZ
delay time RAB to SDA
high-impedance
input LOW time
input HIGH time
rise time
fall time
480/n + 20
480/n + 20
480/n
480/n
2400/n + 20
2400/n + 20
480/n
480/n
ns
ns
ns
ns
50
50
ns
720/n
20
960/n + 20
720/n + 20
4800/n + 20 ns
50
50
ns
W
RITE MODE
((C
L
= 20 pF)
t
suD
set-up time SDA to
SCL
t
hD
hold time SCL to SDA
t
suCR
set-up time SCL to
RAB
t
dWZ
delay time SDA
high-impedance to
RAB
note 2
20
720/n
20
720/n
ns
240/n + 20
960/n + 20
-
1200/n + 20
4800/n + 20 ns
ns
0
0
ns
Microcontroller interface timing (4-wire bus mode; servo commands);
see Figs 35 and 36
I
NPUTS
SCL
AND
SILD
t
L
t
H
t
r
t
f
input LOW time
input HIGH time
rise time
fall time
710
710
240
240
710
710
240
240
ns
ns
ns
ns
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