YOUDA INTEGRATED CIRCUIT
YD3361
LOW POWER NARROW BAND IF AMPLIFIER
--YD3361
DESCRIPTION
The YD3361 includes an Oscillator, Mixer, Limiting Amplifier, Quadrature Discriminator, Active Filter, Squelch,
Scan Control and mute Switch. This device is designed for use in FM dual conversion communications equipment.
FEATURES
*Operates from 2.0 to 7.0 V supply.
*Low drain current 3.9 mA Typical @ VCC=4.0 Vdc.
*Excellent sensitivity: input limiting voltage (3.0 dB )2.6V typical.
*Low number of external parts required.
*Operating frequency up to 60 MHz.
BLOCK DIAGRAM
GND
+
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Squelch Trigger with
Mixer
Oscillator
Limiter
Amp
Filter
Amp
AF
Amp
Demodulator
Hysteresis
Vcc
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 3 2006-06-28
YOUDA INTEGRATED CIRCUIT
YD3361
ABSOLUTE MAXIMUM RATINGS
(Tamb=25)
PARAMETERS SYMBOL
VALUE UNIT
Power Supply Voltage
V
CC
10
V
Input Voltage(Vcc4.0V) V
15
1.0 Vrms
Mute Function
V
14
-0.55.0 V
Detector Input Voltage
V
8
1.0 Vp-p
Junction Temperature
Tj
150
Operating Temperature
Topr
-20+70
Storage Temperature
Tstg
-55+150
ELECTRICAL CHARACTERISTICS
(Tamb=25, V
CC
=1.3V, fm=1MHz, MOD=30% unless otherwise specified)
PARAMETERS
SYMBO
L
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Supply Voltage
V
CC
2.4 7.0 V
Mute
OFF
2.9 3.9 4.9
Drain Current
Icc
Mute
ON
4.4 5.4 6.4
mA
Input Limiting Voltage
V
ILIM
-3dBlimiting
2.6
6.0
V
Recovered Audio Output Voltage
Vod
V
IN
=10mV 130
160
200
mV
Distortion THD
0.86
%
Recovered Output Voltage
V9
No Input Signal
1.2
1.5
1.8
V
Detector Output Impedance
R9
450
Drop Voltage AF Gain Loss
A
F
-3.0
-0.6
dB
Filter Gain
A
VF
f=10kHzVin=0.3mV
40 50 dB
Filter Output Voltage
V
OF
1.0 1.3 1.6 V
R
OL
30
50
Mute Function
R
OH
1.0
11
M
V
13L
V
12
=1.0V
0
0.4
Scan Level
V
13H
V
12
=0V 3.0
3.5
V
Trigger Hysteresis
V
TH
45
100
mV
Mixer Conversion Gain
A
VM
28 dB
Mixer Input Resistance
R
16
3.3 k
Mixer Input Capacitor
C
16
2.2 pF
WuXi YouDa Electronics Co ., Ltd 2 of 5 Website: www.e-youda.com
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