參數(shù)資料
型號(hào)： TDA1597T
廠商： NXP SEMICONDUCTORS
元件分類： 接收器
英文描述： IF amplifier/demodulator for FM radio receivers
中文描述： FM, AUDIO DEMODULATOR, PDSO20
文件頁(yè)數(shù)： 2/24頁(yè)
文件大小： 200K
代理商： TDA1597T
1997 Feb 27
2
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
FEATURES
Balanced limiting amplifier
Balanced coincidence demodulator
Two open-collector stop pulse outputs for
microcomputer tuning control
Simulated behaviour of ratio detector (internal field
strength and detuning dependent voltage for dynamic
AF signal muting)
Mono/stereo blend field strength indication control
voltage
AFC output
3-state mode switch for FM-MUTE-ON, FM-MUTE-OFF
and FM-OFF
Internal compensation of AF signal Total Harmonic
Distortion (THD)
Built-in hum and ripple rejection circuits.
GENERAL DESCRIPTION
The TDA1597 provides IF amplification, symmetrical
quadrature demodulation and level detection for quality
home and car FM radio receivers and is suitable for mono
and stereo reception. It may also be applied to common
front-ends, stereo decoders and AM receivers circuits.
All pin numbers mentioned in this data sheet refer to the
SO version (TDA1597T) unless otherwise specified.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
I
P
V
iIF(rms)
supply voltage
supply current (l
2
= I
7
= 0)
IF input sensitivity for limiting on pin 20
(RMS value)
AF output signal on pin 4 (RMS value)
signal-to-noise ratio
7.5
14
8.5
20
22
12
26
35
V
mA
μ
V
V
oAF(rms)
S/N
180
200
82
220
mV
dB
f
m
= 400 Hz;
f =
±
75 kHz
f
m
= 1 kHz;
f =
±
75 kHz
K2 adjustment and
FM-MUTE-OFF
THD
total harmonic distortion
0.1
0.3
%
0.07
0.25
%
T
amb
operating ambient temperature
40
+85
°
C
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA1597
TDA1597T
DIP18
SO20
plastic dual in-line package; 18 leads (300 mil)
plastic small outline package; 20 leads; body width 7.5 mm
SOT102-1
SOT163-1
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參數(shù)描述
TDA1597T/V1,112 功能描述:調(diào)諧器 FM IF RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度:
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