NTE1484 查看數據表（PDF） - NTE Electronics

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NTE1484

Integrated Circuit Phase Lock Loop (PLL) Stereo Demod

NTE Electronics 

Electrical Characteristics (Cont’d): (VCC = 12V, f = 1kHz, TA = +25°C unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Output Voltage

Channel Balance

Monaural Total Harmonic Distortion

Vout

CB

MONO

THD

Vin = 200mV

Vin = 200mV

Vin = 200mV

− 1.2 − V

−1.5 − +1.5 dB

− 0.05 0.25 %

Carrier Lock

CL P = 20mV,

L = R = 180mV,

Note 1

f = 19kHz − 30 − dB

f = 38kHz − 30 − dB

SCA Rejection Ratio

Pilot Level for Lamp ON

Stereo Lamp Hysteresis

SCA Rej P = 20mA, L + R = 180mV,

SCA = 20mV, fSCA = 67kHz

L(ON)

− 75 − dB

4 7 13 mV

− 6 − dB

Capture Range

CR P = 14mV

− ±3 − %

Signal−To−Noise Ratio

S/N

Total Current Drain

IT lamp OFF

Maximum Input Signal

Vin Monaural THD = 1%

Threshold Voltage Stereo−Monaural

Switching

Pin12 Voltage for Lamp OFF

− 17.5 − mA

− 400 − mV

− 0.55 − V

Note 1. Output terminal of IC

Pin Connection Diagram

VCC 1

Input 2

0.047µF to Pin13 3

Lt Output 4

Rt Output 5

Feedback 6

Feedback 7

GND 8

16 Time Constant

15 LPF

14 LPF

13 0.047µF to Pin13

12 Stereo/Mono Switch

11 LPF

10 LPF

9 Stereo Lamp

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