參數(shù)資料
型號： TDA9855WP
廠商： NXP SEMICONDUCTORS
元件分類： 消費家電
英文描述： I2C-bus controlled BTSC stereo/SAP decoder and audio processor
中文描述： SPECIALTY CONSUMER CIRCUIT, PQCC68
文件頁數(shù)： 20/52頁
文件大小： 345K
代理商： TDA9855WP
1997 Nov 04
20
Philips Semiconductors
Product specification
I
2
C-bus controlled BTSC stereo/SAP
decoder and audio processor
TDA9855
S
UBWOOFER OR SURROUND CONTROL
G
s
subwoofer control
maximum boost; f
i
= 40 Hz
maximum attenuation;
f
i
= 40 Hz
12
12
14
14
16
16
dB
dB
G
step
α
m
V
DC(OFF)
step resolution
mute attenuation
DC step offset between any
adjacent step
60
2
10
5
15
dB
dB
mV
mV
mV
G
s
= 0 to +14 dB
G
s
= 0 to
14 dB
G
s
= +2 to +14 dB without
input offset (pin SW connected
to V
ref
)
G
s
= +2 to +14 dB inclusive
offset from OUTR, OUTL
G
s
= 0 to
14 dB
DC step offset between any
step to mute
50
mV
4
5
10
6
mV
k
R
F
internal resistor for low-pass
filter with external capacitor at
pin SW
common mode rejection in
surround sound at pin OUTS
L + R
REJ
mono signal at VIL/VIR;
f = 1 kHz; V
i
= 1 V;
balance = 0 dB
26
36
dB
M
UTING AT POWER SUPPLY DROP FOR
OUTL, OUTR
AND
OUTS
V
CC-DROP
P
OWER
-
ON RESET
; note 9
supply drop for mute active
V
CAP
0.7
V
V
RESET(STA)
start of reset voltage
increasing supply voltage
decreasing supply voltage
increasing supply voltage
4.2
5.2
5
6
2.5
5.8
6.8
V
V
V
V
RESET(END)
end of reset voltage
Digital part (I
2
C-bus pins);
note 10
V
IH
V
IL
I
IH
I
IL
V
OL
HIGH-level input voltage
LOW-level input voltage
HIGH-level input current
LOW-level input current
LOW-level output voltage
3
0.3
10
10
V
CC
+1.5
+10
+10
0.4
V
V
μ
A
μ
A
V
I
IL
= 3 mA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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