HYNIX GL3361

GL3361
GL3361
Low Power Narrow Band FM IF
Pin Configurations
Description
The GL3361 is designed for use in FM dual conversion
communications equipment. This device contains an Oscillator, Mixer, Limiting Amplifier, Filter Amplifier and
OSC1 1
Squelch circuitry.
OSC2
Features
MIXOUT
• Operating Voltage : 2.0 ~ 8.0 V
• Low Power Consumption (2.6mA typical @ Vcc=4.0Vdc) VCC
• Excellent Input Sensitivity (-3dB limiting=2.6§ Åtypical) LIMIN
• Minimum Number of External Parts Required
DEC1
• Full ESD Protection
• Package Type : 16 DIP/SOP
DEC2
QUAD
16
MIXIN
2
15
GND
3
14
MUTE
4
13
SCAN
5
12
SQIN
6
11
FLTOUT
7
10
FLTIN
8
9
AFOUT
Block Diagram
GND
Mute
16
15
14
Squelch Filter
input
output
12
11
Scan
control
13
Filter
Amp
Filter
input
10
-
Audio
output
9
AF
Amp
IF
input
+
Squelch Trigger with Hysteresis
Demodulator
Mixer
Limiter
Amp
Oscillator
1
2
Crystal OSC
3
4
Mixer
output
Vcc
5
Limiter
input
6
7
Decoupling
8
Quad
coil
The information in this document is subject to change without notice.
1
GL3361
Absolute Maximum Ratings (Ta=25¡
É, unless otherwise noted)
Characteristics
Pin
Symbol
Value
Unit
Power Supply Voltage
4
Vcc(max)
10
Vdc
Operating Supply Voltage Range
4
Vcc
2.0 to 8.0
Vdc
Operating Temperature Range
-
Ta
0 to +70
¡ É
Storage Temperature Range
-
Tstg
-65 to +150
¡ É
* Notice : Absolute maximum ratings are values beyond which permanent damage to the device may occur.
Electrical Characteristics
( Vcc=4.0Vdc, fo=10.7MHz,¡ â
f=¡ ¾
3kHz,fmod=1.0kHz,Ta=25¡ É, unless otherwise noted )
Spec.
Characteristics
Symbol
Test conditions
Units
Min
Typ
Max
Icc_off
Squelch on ( V12=GND )
2.0
2.5
3.5
mA
Icc_on
Squelch off ( V12=1V )
4.2
5.2
6.2
mA
Recovered Audio Output Voltage
Vout
Vin = 10mVrms
120
160
-
§ Æ
rms
Input Limiting Voltage
Vin(lim)
-3dB limiting
-
2.6
6.0
§ Å
rms
Total Harmonic Distortion
THD
-
0.86
-
%
Drop Voltage AF Gain Loss
¡ â
Gv
-3.0
-0.6
-
dB
Detector Output Impedance
Zout
-
550
-
§Ù
Filter Gain
Gflt
40
50
-
dB
Filter Output Voltage
Vflt
0.5
0.7
0.9
Vdc
Operating Current ( No signal )
Vcc = 4V -> 2V
Vin = 0.3mVrms
Mute Function Low
Rmute_L Squelch on ( V12 = GND )
-
45
-
§Ù
Mute Function High
Rmute_H
Squelch off ( V12 = 1V )
-
11
-
§ Û
Scan Function Low
Vscan_L
Squelch off ( V12 = 1V )
-
0
0.4
V
Scan Function High
Vscan_H Squelch on ( V12 = GND )
3.0
3.8
-
V
-
50
-
mV
Trigger Hysteresis
VTH
Squelch on/off
Mixer Conversion Gain
Gmix
-
26
-
dB
Mixer Input Resistance
Ri
-
3.3
-
§ Ú
Mixer Input Capacitance
Ci
-
9.0
-
pF
2
GL3361
Pin Descriptions
No.
Symbol
No.
Symbol
1
OSC1
The base of the colpitts oscillator
Function
9
AFOUT
2
OSC2
The emitter of the colpitts oscillator
10
FLTIN
3
MIXOUT
Output of the Mixer
11
FLTOUT
Function
Recovered audio output
Filter amplifier input
Filter amplifier output
4
VCC
Supply voltage
12
SQIN
Squelch input
5
LIMIN
Input to the IF amplifier
13
SCAN
Scan control output
6
DEC1
IF decoupling
14
MUTE
Mute output
7
DEC2
IF decoupling
15
GND
Ground
8
QUAD
Quadrature tuning coil
16
MIXIN
Input of the Mixer
Test Circuit
Audio
Mute
Scan
Control
Squelch
SW
Input
Filter
Amp
Output
Filter
Amp
Input
510
1.0
0.01
470k
16
15
14
13
12
0.01
1.0
10k
51
AF
Output
8.2k
Mixer input
10.7MHz
11
10
9
6
7
8
GL3361
1
2
3
5
4
20k
0.1
0.1
FLT
220pF
10.245MHz
68pF
Quad Coil
Vcc
0.1
C-§ Þ
, unless noted
FLT - muRata Erie North America Type CFU455D2 or equivalent
Quadrature Coil - Toko America Type 7MC-8128Z or equivalent
3
GL3361
Application Circuit
SCAN
control
1.0k
4.7
RF input
18k
100k
Vcc
10
10k
4.7k
0.001
6.8k
470k
0.001
0.1
3.3k
3.3k
16
15
14
13
12
11
10
9
6
7
8
AUDIO
output
22k
0.01
0.047
0.022
51
GL3361
1
2
3
4
5
20k
0.1
0.1
FLT
220pF
10.245MHz
68pF
Quad Coil
0.1
FLT - muRata Erie North America Type CFU455D2 or equivalent
Quadrature Coil - Toko America Type 7MC-8128Z or equivalent
Units : R =§ Ù
C=§ Þ
, unless noted
4