參數(shù)資料
型號(hào)： TDA9852H
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： I2C-bus controlled BTSC stereo/SAP decoder and audio processor
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP44
文件頁數(shù)： 13/40頁
文件大?。?/td> 258K
代理商： TDA9852H
1997 Mar 11
13
Philips Semiconductors
Preliminary specification
I
2
C-bus controlled BTSC stereo/SAP
decoder and audio processor
TDA9852
CHARACTERISTICS
All voltages are measured relative to GND; V
CC
= 8.5 V; R
s
= 600
; R
L
= 10 k
; C
L
= 2.5 nF; AC-coupled; f
i
= 1 kHz;
T
amb
= 25
°
C; gain control G
v
= 0 dB; balance in mid position; loudness
off
; see Fig.1; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
General
V
CC
I
CC
V
ref
supply voltage
supply current
internal reference voltage at
pin V
ref
8.0
8.5
75
4.25
9.0
95
V
mA
V
Input level adjustment control
G
LA
G
step
V
i(rms)
input level adjustment control
step resolution
maximum input voltage level
(RMS value)
input impedance
3.5
2
0.5
+4.0
dB
dB
V
Z
i
29.5
35
40.5
k
Stereo decoder
MPX
L+R(rms)
input voltage level for 100%
modulation L + R; 25 kHz
deviation (RMS value)
MPX
L
R
input voltage level for 100%
modulation L
R; 50 kHz
deviation (peak value)
MPX
(max)
maximum headroom for L + R,
L, R
MPX
pilot(rms)
nominal stereo pilot voltage
level (RMS value)
ST
on(rms)
pilot threshold voltage stereo
on
(RMS value)
input level adjusted via I
2
C-bus
(L + R; f
i
= 300 Hz);
monitoring LINE OUT
250
mV
707
mV
f
mod
< 15 kHz; THD < 15%
9
dB
50
mV
data STS = 1
data STS = 0
data STS = 1
data STS = 0
15
10
480
2.5
500
35
30
520
mV
mV
mV
mV
dB
mV
ST
off(rms)
pilot threshold voltage stereo
off
(RMS value)
Hys
OUT
L+R
hysteresis
output voltage level for 100%
modulation L + R at LINE OUT
input level adjusted via I
2
C-bus
(L + R; f
i
= 300 Hz);
monitoring LINE OUT
aligned with dual tone 14%
modulation for each channel;
see Section “Adjustment
procedure” in Chapter
“Functional description”
f
L
= 300 Hz; f
R
= 3 kHz
f
L
= 300 Hz; f
R
= 8 kHz
f
L
= 300 Hz; f
R
= 10 kHz
α
cs
stereo channel separation L/R
at LINE OUT
25
20
15
35
30
25
dB
dB
dB
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