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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 9/24頁 |
| 文件大?。?/td> | 200K |
| 代理商： | TDA1597T |
1997 Feb 27
9
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
Note
1.
Tuning stop detector
f
STOP-0
detuning frequency for STOP-0
(pin 15)
V
15
≥
3.5 V; see Fig.11
V
15
≤
0.3 V; see Fig.11
V
14
≥
3.5 V; see Fig.10
V
14
≤
0.3 V; see Fig.10
V
14, 15
≥
3.5 V; see Fig.9
V
14, 15
≤
0.3 V; see Fig.9
38
38
250
26
26
50
kHz
kHz
kHz
kHz
μ
V
μ
V
f
STOP-1
detuning frequency for STOP-1
(pin 14)
V
20(rms)
dependence on input voltage for
STOP-0 and STOP-1
(RMS value)
internal low-pass resistance of
detune detector
voltage on capacitor
R
8
12
25
50
k
V
8
V
i
≤
5
μ
V (RMS) on input pin 20;
I
7
= 0
2.2
V
Level detector (I
2
= 0)
V
6
output voltage
V
20
≤
5
μ
V (RMS)
V
20
= 1 mV (RMS)
0.1
3.0
1.1
4.2
V
V
Reference voltage source (pin 5)
V
ref
reference output voltage
I
5
=
1 mA
3.3
3.7
4.1
V
Operation with AM-IF
Level and stop information (on pins 6, 13, 14, 15 and 16) is provided for the modes FM-MUTE-ON and
FM-MUTE-OFF. This information is also available in the FM-OFF mode when an AM-IF signal is input (for example
455 kHz). This can also provide a valid detuning information when a suitable AM-IF resonance circuit is provided for
demodulator (see Fig.18).
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
α
20
V
V
4 FM
)
MUTE
–
ON
–
)
-------------------------------------------------------
log
=
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