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TEA6850H 数据表(PDF) 9 Page - NXP Semiconductors

部件名 TEA6850H
功能描述  IF filter / amplifier / demodulator for FM radio receivers
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

TEA6850H 数据表(HTML) 9 Page - NXP Semiconductors

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July 1994
9
Philips Semiconductors
Preliminary specification
IF filter / amplifier / demodulator for FM
radio receivers
TEA6850
AC CHARACTERISTICS
VP = 8.5 V; Tamb = +25 °C; f = 10.7 MHz with fm = 1 kHz, ±22.5 kHz deviaton (∆f = ±22.5 kHz); EMF = 30 mV RMS;
50
µs de-emphasis; filter bandwidth = 50 kHz overall; −6 dB gain from EMF to IF filter output (pins 21 and 22); in noise
frequency band for S/N measurements 300 Hz to 15 kHz; S/N stereo measurement with ideal decoder; measurements
taken in Fig.4 unless otherwise specified.
Reference voltage source
V9
voltage at pin 9
2.4
2.55
2.7
V
V10
voltage at pin 10
2.95
3.25
3.55
V
V11
voltage at pin 11
0.98
1.08
1.2
V
TK
temperature coefficient of V10 and V11
3.3
10−3/K
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
DS100
dynamic selectivity for 100 kHz
EMF = 700
µV13
16
dB
distance
EMF = 14 mV
10
12
dB
DS200
dynamic selectivity for 200 kHz
EMF = 700
µV22
27
dB
distance
EMF = 14 mV
18
22
dB
S/N
signal-to-noise ratio
mono
61
67
dB
stereo
54
57
dB
EMF
IF signal
S/N = 26 dB; V5 = 5 V
20
45
µV
S/N = 46 dB; V5 = 5 V
130
370
µV
EMF
input voltage for start of limiting
−3 db at MPX output;
10
20
µV
(RMS value)
V5 = 5V
THD
total harmonic distortion
∆f = 75 kHz
0.3
0.5
%
∆f = 100 kHz
0.5
1
%
fm = 8 kHz; ∆f = 75 kHz
35%
D57
attenuation of third harmonic
fm = 19 kHz; ∆f = 6.75 kHz;
14
20
dB
measured at pin 4
measured at 57 kHz
compared to 57 kHz
∆f = 2 kHz
EMF
admissible maximum input voltage
300
−−
mV
(RMS value)
A14-21,22
gain to IF filter output (adjustable)
−−6
dB
∆A
DC
downconverter adjustable range
−10
−+6dB
VO
MPX output voltage (RMS value)
180
200
220
mV
∆V
O
MPX output voltage ripple
1 kHz < fmod < 15 kHz
−−±2dB
23 kHz < fmod < 53 kHz
−−±2dB
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT


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