參數(shù)資料
型號(hào)： TDA9852H-T
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP44
文件頁數(shù)： 9/40頁
文件大?。?/td> 195K
代理商： TDA9852H-T
1997 Mar 11
17
Philips Semiconductors
Preliminary specication
I2C-bus controlled BTSC stereo/SAP
decoder and audio processor
TDA9852
Automatic volume level control (AVL)
Zi
input impedance
8.8
11.0
13.2
k
Vi(rms)
maximum input voltage
(RMS value)
THD < 0.2%
2
tbf
V
Gv
gain, maximum boost
5
6
7
dB
maximum attenuation
14
15
16
dB
Gstep
equivalent step width between
the input stages
(soft switching system)
1.5
dB
Viop(rms)
input level at maximum boost
(RMS value)
0.1
V
input level at maximum
attenuation (RMS value)
1.125
V
Vo(rms)
output level in AVL operation
(RMS value)
see Fig.5
160
200
250
mV
VDC OFF
DC offset between different
gain steps
voltage at pin CAV
6.50 to 6.33 V or
6.33 to 6.11 V or
6.11 to 5.33 V or
5.33 to 2.60 V; note 6
6mV
Ratt
discharge resistors for attack
time constant
AT1 = 0; AT2 = 0; note 7
340
420
520
AT1 = 1; AT2 = 0; note 7
590
730
910
AT1 = 0; AT2 = 1; note 7
0.96
1.2
1.5
k
AT1 = 1; AT2 = 1; note 7
1.7
2.1
2.6
k
Idec
charge current for decay time
normal mode; CCD = 0; note 8 1.6
2.0
2.4
A
power-on speed-up; CCD = 1;
note 8
tbf
A
Selector from pins LOL, LOR, LIL and LIR to pins SOL and SOR
Zi
input impedance
16
20
24
k
α
s
input isolation of one selected
source to the other input
Vi =1V; fi = 1 kHz
86
96
dB
Vi =1V; fi = 12.5 kHz
80
96
dB
Vi(rms)
maximum input voltage
(RMS value)
THD < 0.5%
2
2.3
V
VDC OFF
DC offset voltage at selector
output by selection of any
inputs
25
mV
Zo
output impedance
80
120
RL
output load resistance
5
k
CL
output load capacitance
0
2.5
nF
Gv
voltage gain, selector
0
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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