UTCTDA7088 [UTC]
FM RECEIVER CIRCUIT FOR BATTERY SUPPLY; 对于电池供电的FM接收器电路
| 型号： | UTCTDA7088 |
| 厂家： | 
Unisonic Technologies |
| 描述： | FM RECEIVER CIRCUIT FOR BATTERY SUPPLY |
| 文件： | 总7页 (文件大小：439K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UTC TDA7088 LINEAR INTEGRATED CIRCUIT
FM RECEIVER CIRCUIT FOR
BATTERY SUPPLY
DESCRIPTION
The UTC TDA7088 is a bipolar integrated circuit for use in
mono portable and pocket radios. It is used when a minimum
of peripheral components (of small dimensions and low costs)
is important. The circuit contains
a frequency-locked-
loop(FLL) system with an Intermediate Frequency (IF) of
about 70kHz. Selectivity is achieved by active RC-filters. De-
tuning related to the IF and too weak input signals is
suppressed by the mute circuit.
SOP-16
FEATURES
APPLICATIONS
*Equipped with all stages of a mono receiver from antenna to
audio output.
*Mechanical tuning ; this is possible with or
without integrating AFC circuit
*Mute circuit
*Electrical tuning; this is realized by one
directional (band-up) search tuning facility,
including RESET to the lower-band limit.
*Search tuning with a single varicap diode
*Mechanical tuning with integrating AFC
*AM application supported
*Power supply polarity protection
*Power supply voltage down to 1.8V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VALUE
UNIT
MIN
0
MAX
5
Supply Voltage
Vp
Tstg
Tamb
Ves
V
Storage Temperature
-55
-10
+150
70
°C
°C
Operating ambient temperature
Electrostatic handling; note 1
Note 1: There is no special ESD protection circuit built-in; ESD data on request.
UTC UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R110-016,A
UTC TDA7088 LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range,VCC=15V,f=1kHz,Unless otherwise specified)
PARAMETER
Supply Voltage
SYMBOL
Vp
CONDITIONS
MIN
1.8
4.2
0.5
TYP
3
MAX UNIT
5
6.6
110
6
V
Supply Current
Ip
5.2
mA
MHz
mV
Radio Input Frequency
RF sensitivity input voltage
(RMS value)
fiRF
Vi(rms)
VOAF=-3dB, VOAF=0dB at
Vi=1mV, mute off
Df=+-75kHz,THD<10%
RL=22kW
3
Signal handling
100
60
200
85
mV
mV
°C
Audio Output Signal (RMS value)
Operating Ambient Temperature
Vo(rms)
Tamb
120
70
-10
BLOCK DIAGRAM
UTC UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R110-016,A
UTC TDA7088 LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATIONS
PIN SYMBOL
DESCRIPTION
1
2
3
4
5
6
7
8
MUTE
VOAF
LOOP
VP
Mute output
Audio frequency output signal
AF loop filter
MUTE
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
TUNE
+3V supply voltage
OSC
IFFB
CLP1
VOIF
Oscillator resonant circuit
IF feedback
V
OAF
CAP
LOOP
GND
Low-pass capacitor of 1 dB amplifier
IF output to external coupling capacitor (high-
pass)
V
P
CLIM
TDA7088
OSC
IFFB
V
iRF
9
ViLF
IF input to limiter amplifier
Low-pass capacitor of IF limiter amplifier
Radio frequency input
10
11
12
13
14
15
16
CLP2
ViRF
CiRF
CLIM
GND
CAP
V
iRF
LP1
C
LP2
C
Radio frequency input
V
OIF
ViIF
Limiter offset voltage capacitor
Ground(0V)
Fig.2
All-pass filter capacitor/input for search tuning
Electrical tuning/AFC output
TUNE
DC CHARACTERISTICS
Vp=3V,Tamb=25°C, unless otherwise specified.
PARAMETER
SYMBOL
Vp
MIN
1.8
TYP
3
MAX
5
UNIT
V
Supply Voltage (pin4)
Supply Current (pin4)
Ip
4.2
5.2
6.6
mA
V
DC voltage on pin1
V1
2.5
2.55
2.69
2.44
1.67
2.47
0.94
2.12
60
2.6
DC voltage on pin3
V3
2.64
2.38
1.6
2.74
2.5
V
DC voltage on pins 6 and 7
DC voltage on pin 8
V6,7
V8
V
1.74
2.52
0.98
2.18
80
V
DC voltage on pin 9,10 and 13
DC voltage on pins 11 and 12
DC voltage on pin 15
V9,10,13
V11,12
V15
I2
2.42
0.91
2.06
45
V
V
V
AF output current on pin2
Oscillator current on pin5
mA
mA
I5
275
375
500
UTC UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R110-016,A
UTC TDA7088 LINEAR INTEGRATED CIRCUIT
AC CHARACTERISTICS
Vp=3V,Tamb=25°C, fiRF=96MHz modulated with fmod=1kHz and +-22.5kHz deviation; Vi=400mV(measured as
EMF,Rs=75W) and measurements taken in Fig.4;unless otherwise specified.
PARAMETER
SYMBOL
CONDITIONS
VOAF=-3dB;VOAF=0dB at
Vi=1mV;see Fig.3
Mute off
MIN
TYP
MAX
UNIT
RF sensitivity input voltage (RMS Vi(rms)
value)
3
6
6
12
10
mV
mV
mV
mV
dB
%
Mute on
3
(S+N)/N =26dB
Df=+-75kHz,THD<10%
See Fig.3
5
Signal handling
Vi(rms)
(S+N)/N
THD
100
52
200
56
1
Signal plus noise-to-noise ratio
Total harmonic distortion
Df=+-22.5kHz
1.4
3.3
Df=+-75kHz
2.4
52
%
AM suppression
a AM
FM:1kHz,+-75kHz,
AM:1kHz,m=0.8
100mV RMS ripple on Vp,f=1kHz
RL=22kW
47
dB
Ripple rejection
RR1000
Vo(rms)
7
10
85
dB
Audio output signal (RMS value)
60
120
mV
Search Tuning (with BB910 and C16=0.1mF) see Fig.1
Minimum output voltage on pin16 V16 Limiting point
Vp -
1.85
210
2.83
9.5
V
Tuning steepness
Oscillator steepness
AFC steepness
DV/Dt
DFosc/Dt
DIAFC/DV3 Voltage at pin3
Voltage at pin16
95
420
5.6
19
mV/s
MHz/s
mS
1.25
4.75
UTC UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R110-016,A
UTC TDA7088 LINEAR INTEGRATED CIRCUIT
TEST CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R110-016,A
UTC TDA7088 LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD.
6
QW-R110-016,A
UTC TDA7088 LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD.
7
QW-R110-016,A
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