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Datasheet: YD9088 (No company)

FM RECEIVER CIRCUIT FOR BATTERY SUPPLY

 

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No company
YOUDA INTEGRATED CIRCUIT
YD9088
FM RECEIVER CIRCUIT FOR BATTERY SUPPLY
--
YD9088
DESCRIPTION
The YD9088 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.
FEATURES
*Equipped with all stages of a mono receiver form antenna to audio output
*Mute circuit
*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












WuXi YouDa Electronics Co., Ltd
Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China
Tel: 86-510-85205117 86-510-85205106 Fax: 86-510-85205110 Website: www.e-youda.com
SHENZHEN OFFICE Tel 86-755-83740369 Fax 86-755-83741418
Ver 5.0 1 of 4 2006-7-10
YOUDA INTEGRATED CIRCUIT
YD9088
BLOCK DIAGRAM
11
6
7
8
1
16
14
5
12
4
9
10
13
3
15
2.2k
2.2k
+1
MIXER
V1
6k
5k
Vp
IF
LIMTER
5.4k
ALLPASS
FILTER
DEMODULATOR
6K
LOOP FILTER
VCO
V2
+
SEARCH
TUNING
&
R
S
V3
MUTE
AF
2
V2
-1
AF
+
V2
ABSOLUTE MAXIMUM RATINGS
(Tamb=25)
PARAMETER SYMBOL VALUE UNIT
Supply voltage
Vcc
5 V
Operating temperature
Topr
-10+70
Storage temperature
Tstg
-55+150





WuXi YouDa Electronics Co., Ltd 2 of 4 Website: www.e-youda.com
YOUDA INTEGRATED CIRCUIT
YD9088
ELECTRICAL CHARACTERISTICS
(Vcc=3V, Tamb=25, Unless otherwise specified)
DC CHARACTERISTICS
PARAMETER SYMBOL
MIN
TYP
MAX
UNIT
Supply Voltage
Vp 1.8 3 5 V
Supply Current
Ip
4.2
5.2
6.6
mA
DC Voltage On Pin1
V
1
2.50
2.55
2.60
V
DC Voltage On Pin3
V
3
2.64 2.69 2.74 V
DC Voltage On pin6 and Pin7
V
6,7
2.38 2.44
2.50 V
DC Voltage On Pin8
V
8
1.60
1.67
1.74
V
DC Voltage On Pin9, Pin10 and Pin13
V
9,10,13
2.42 2.47 2.52 V
DC Voltage On Pin11 and Pin12
V
11,12
0.91 0.94 0.98 V
DC Voltage On Pin15
V
15
2.06
2.12
2.18 V
AF Output Vurrent On Pin2
I
2
45 60 80
A
Oscillator Vurrent On Pin5
I
5
275 375 500 A
AC CHARACTERISTICS
PARAMETER SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
Mute off
3
6
V
oAF
=-3dB,
V
oAF
=0dB
at Vin=1mV
Mute on
3
6
12
V
RF Sensitivity Iinput
Voltage
(RMS value)
(S+N)/N=26dB
5
10
V
Signal Handing
Vi(rms)
f=75kHz, THD<10%
100
200 mV
Signal Plus
Noise-to-noiseRatio
(S+N)/N 52
56
dB
f=22.5kHz
1
1.4
%
Signal Harmonic
Distortion
THD
f=75kHz
2.4
3.3 %
AM Rejection
AMR
FM:1kHz, 75kHz
AM:1kHz, m=0.8
47 52 dB
RippleRejection RR
1000
100mV RMS ripple on Vp,
f=1kHz
7 10 dB
Audio Output Signal
Vo
R
L
=22k
60 85 120 mV
Search Tuning (with BB910 and C
16
=0.1F)
Minimum Output
Voltage On Pin16
V
16
Limiting
point
V
P
-
1.85
V
Tuning Steepness
V/t
Voltage at pin16
95
210
420
mV/s
Oscillator Steepness
fosc/t
1.25
2.83
5.6
MH
Z
/S
AFC Steepness
I
AFC
/V3
Voltage at pin3
4.75
9.5
19
S

WuXi YouDa Electronics Co., Ltd 3 of 4 Website: www.e-youda.com
YOUDA INTEGRATED CIRCUIT
YD9088
APPLICATION CIRCUIT
OUTLINE DRAWING

WuXi YouDa Electronics Co., Ltd 4 of 4 Website: www.e-youda.com
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