參數(shù)資料
型號(hào): TDA1576T-T
廠商: NXP SEMICONDUCTORS
元件分類: 接收器
英文描述: FM, AUDIO DEMODULATOR, PDSO20
封裝: 7.50 MM, PLASTIC, MS-013, SOT163-1, SOP-20
文件頁(yè)數(shù): 13/16頁(yè)
文件大小: 90K
代理商: TDA1576T-T
1998 Nov 18
6
Philips Semiconductors
Product specication
FM/IF amplier/demodulator circuit
TDA1576T
CHARACTERISTICS
VP = 8.5 V; fIF = 10.7 MHz; RS =60 ; fm = 400 Hz with f= ±22.5 kHz; 50 s de-emphasis (C8-9 = 6.8 nF);
Tamb =25 °C and measurements taken in Fig.1; unless otherwise specied. The demodulator circuit is adjusted at
minimum second harmonic distortion for ViIF = 1 mV and a deviation f= ±75 kHz.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VP
supply voltage (pin 1)
7.5
8.5
15
V
IP
supply current
V5 =V9 =V13 = 0
10
16
23
mA
Reference voltage
Vref
reference voltage (pin 14)
I14 = 1mA
4.9
V
Vref
reference voltage dependence on
temperature
0.3
%/K
I14
maximum output current
short-circuit current
4
6
7.5
mA
R14
output resistor
I14 < 1.2 mA
60
150
IF amplier
ViIF(rms)
input sensitivity (RMS value; pin 17)
3 dB before limiting
14
22
35
V
R17-18
input resistance
ViIF = 200 mV (RMS)
10
k
C17-18
input capacitance
ViIF = 200 mV (RMS)
5
pF
VoIF(p-p)
output voltage at pins 3 and 7
(peak-to-peak value)
Z3, 7 = 10 pF parallel to
1M
610
680
750
mV
R3-7
output resistance
200
250
300
Demodulator
R4-6
input resistance
20
30
40
k
C4-6
input capacitance
1
2.5
pF
R8, 9
output resistance
2.9
3.7
4.5
k
V8, 9
DC offset voltage on output pins at
V4-6 =0
V5 > 3 V or V3-7 = 0 or
V13 < 0.3 V
0
±100
mV
demodulator efciency
40
mV/
°
demodulator efciency dependent on
supply voltage
6.2
mV/
°
V/V
DC voltage ratio
0.653
0.667
0.680
V/V
dependence on temperature
105
1/K
V
14
V
14
T
×
----------------------
V
14
I
14
------------
V
-------
V
8-9
--------------
V
8-9
V
P
3V
BE
()
-----------------------------------------
V
8
V
9
+
2V
2
-------------------
V
T
-------
V
8
V
9
+
2V
2
-------------------
T
-----------------------
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