Datasheet YD3361 Specification

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 )2.6μV typical.
*Low number of external parts required.
*Operating frequency up to 60 MHz.

BLOCK DIAGRAM

16 15 14 13 12 11 10

GND

Oscillator

+

Squelch Trigger with

Hysteresis

Mixer

Vcc

9

Filter

Amp

Limiter

Amp

AF

Amp

Demodulator

87654321

WuXi YouDa Electronics Co., Ltd

Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China

Tel: [phone] Fax: [phone] Website: www.e-youda.com

SHENZHEN OFFICE Tel： [phone] Fax： [phone]

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 VCC 10 V

Input Voltage(Vcc≥4.0V) V15 1.0 Vrms

Mute Function V14 -0.5～5.0 V

Detector Input Voltage V8 1.0 Vp-p

Junction T em perature Tj 150 ℃

Operating T em perature T opr -20～+70 ℃

Storage Temperature T stg -55～+150 ℃

ELECTRICAL CHARACTERISTICS

(Tamb=25℃, VCC=1.3V, fm=1MHz, MOD=30% unless otherwise specified)

PARAMETERS

SYMBO

L

Supply Voltage VCC 2.4 7.0 V

Drain Current Icc

Input Limiting Voltage V

ILIM

TEST CONDITIONS MIN TYP MAX UNIT

Mute OFF 2.9 3.9 4.9

Mute ON 4.4 5.4 6.4

-3dBlimiting 2.6 6.0 μV

mA

Recovered Audio Output V oltage V od VIN=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 Ω
Drop Voltage AF Gain Loss △AF -3.0 -0.6 dB

Filter Gain AVF f=10kHz，Vin=0.3mV 40 50 dB

Filter Output Voltage VOF 1.0 1.3 1.6 V

ROL 30 50 Ω

Mute Function

Scan Level

1.0 11 MΩ

R

OH

V

V

13L

V

V

13H

=1.0V 0 0.4

12

=0V 3.0 3.5

12

V

Trigger Hysteresis VTH 45 100 mV
Mixer Conversion Gain AVM 28 dB
Mixer Input Resistance R16 3.3 kΩ
Mixer Input Capacitor C16 2.2 pF

WuXi YouDa Electronics Co ., Ltd 2 of 5 Website: www.e-youda.com

YOUDA INTEGRATED CIRCUIT YD3361

APPLICATION CIRCUIT

Vcc

18k

0.1μ

1st IF

10.7MHz

0.01μ

16

Oscillator

100k 1k

+

10μ

51Ω

15 14 13 12 11 10

GND

Squelch Trigger with

Hysteresis

Mixer

+

4.7μ

+

Vcc

0.1μ

Limiter

Amp

0.001μ

470k

Filter

Amp

4.7k

6.8k 3.3k

0.001μ

9

AF

Amp

Demodulator

87654321

3.3k

10k

0.022μ

AF

OUTPUT

0.047μ

22k

Quad Coil

10.245MHz

WuXi YouDa Electronics Co ., Ltd 3 of 5 Website: www.e-youda.com

68pF

220pF 0.1μ 0.1μ

FL1

20K

YOUDA INTEGRATED CIRCUIT YD3361

OUTLINE DRAWING (1)

WuXi YouDa Electronics Co ., Ltd 4 of 5 Website: www.e-youda.com

YOUDA INTEGRATED CIRCUIT YD3361

OUTLINE DRAWING (2)

WuXi YouDa Electronics Co ., Ltd 5 of 5 Website: www.e-youda.com