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參數(shù)資料
| 型號： | TEA5551 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 1-chip AM radio |
| 中文描述： | 1 - AM廣播芯片 |
| 文件頁數(shù)： | 8/17頁 |
| 文件大?。?/td> | 160K |
| 代理商： | TEA5551 |
October 1990
8
Philips Semiconductors
Product specification
1-chip AM radio
TEA5551T
AC CHARACTERISTICS
All parameters are measured in test circuit of Fig.6 at V
S
= 3 V; T
amb
= 25
°
C unless otherwise specified.
RF conditions: Input frequency 1 MHz; 30% modulation where f
mod
= 1 kHz; unless otherwise specified.
Note to the AC characteristics
1.
* Value to be fixed.
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
RF sensitivity
RF input voltage
Loss in sensitivity
V
o(AF)
= 10 mV
V
o(AF)
= 10 mV;
V
S
= 1.8 V
V
i(RF)
1.5
μ
V
V
i(RF)
6
dB
Noise
Signal-to-noise ratio for RF
input signal voltage of
V
i(RF)
= 2
μ
V
V
i(RF)
= 15
μ
V
V
i(RF)
= 1 mV
AF output voltage
S/N
S/N
S/N
6
26
46
dB
dB
dB
V
i(RF)
= 1 mV
V
i(RF)
= 1 mV;
V
S
= 1.8 V
V
o(AF)
80
mV
V
o(AF)
55
mV
Total harmonic distortion
V
i(RF)
= 100
μ
V
to 30 mV
V
i(RF)
= 80 mV;
m = 0.8
THD
0.8
%
THD
10
%
AGC range
Change in RF input voltage
for 10 dB change in AF
output voltage
V
i(RF1)
= 50 mV
V
i(RF1)
/
V
i(RF2)
Z
source
86
3
dB
k
Optimum source impedance
IF suppression
at V
o(AF)
= 10 mV
Oscillator
(pin 14)
Oscillator voltage
note 1
f
osc
= 1468 kHz
α
20
dB
V
i
V
i
100
*
mV
mV
V
5
= 1.5 V
α
V
at f
V
i
at f
i
1 MHz
=
-----------------------468 kHz
=
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