RF Modules

The RF modulator is utilized for Set-top box, Satellite receiver and
Internet applications where a television is used as a monitor. NJR offers a
variety of RF Modulators as shown on the following pages.

An RF Modulator is composed of a high isolation antenna switch and RF
Modulation unit which transmits video and audio signals to a Television.
Depending on the location where the system is used, NTSC and PAL systems are
available for both VHF and UHF bands.

The 3-in-1 Module consists of an RF Modulator, a TV tuner and a Video /
Sound IF unit. The unit provides the receiving function of TV / Cable signals
as well as the RF modulation function.

Applications:

Products:

Set-top Box

Satellite receiver

Internet terminal

VCR

NJH3031
/ 41 series VHF RF Modulators
NJH3032
/ 42 series UHF RF Modulators
NJH3046
series UHF RF Modulators (PLL)
NJH3091
series 3-in-1 Module for NTSC system
NJH3021
series TV Tuner for NTSC system

NJH3031 / 41 series

VHF RF Modulators

Electrical Specifications

Supply Voltage

+ 5V DC

Output Channel

USA 3/4 CH, CCIR 3/4 CH, China 4/5 CH

Frequency

54 ~ 806 MHz

Input Impedance

Video: 75 Audio: 10 k

Input Signal Level

Video: 1 Vp-p Audio: 1.41 Vp-p

Line-up

Part Number

Destination

TV System

Output Channel

Additional Feature

NJH3031D

Southeast Asia

PAL-B

CCIR 3 / 4 CH.

-

NJH3031D

China

PAL-D

China 4 / 5 CH.

-

NJH3031U

North America and Korea

NTSC-M

US 3 / 4 CH.

-

NJH3041D

China

PAL-D

China 4 / 5 CH.

Antenna switch control terminal

NJH3041U

North America and Korea

NTSC-M

US 3 / 4 CH.

Antenna switch control terminal

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NJH3032 / 42 series

UHF RF Modulators

Electrical Specifications

Supply Voltage

5V DC

Output Channel

C.C.I.R. 30 ~ 39 CH

Frequency

47 862 MHz

Input Impedance

Video: 75 Audio: 10 k

Input Signal Level

Video: 1 Vp-p Audio: 1.23 Vp-p

Line-up

Part Number

Destination

TV System

Output Channel

Additional Feature

NJH3032E

Europe

PAL BG / DK

E30 - 39 CH

-

NJH3032E

Hong Kong / China

PAL I / DK

E30 - 39 CH

-

NJH3032G

Germany

PAL-BG

E30 - 39 CH

-

NJH3032M

United Kingdom

PAL-I

E30 - 39 CH

-

NJH3042E

Europe

PAL-BG / DK

E30 - 39 CH

Test Signal Generator

NJH3042G

Germany

PAL - BG

E30 - 39 CH

Test Signal Generator

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NJH3046 series

UHF RF Modulators (PLL Type)

Electrical Specifications

Supply Voltage

MOD: + 5 V BST: + 5 V VT: + 32 V

Output Channel

C.C.I.R. 21 to 69 CH

Frequency

47 862 MHz

Input Impedance

Video: 75 Audio: 10 k

Input Signal Level

Video: 1 Vp-p Audio: 1.23 Vp-p

Line-up

Part Number

Destination

TV System

Output Channel

Additional Feature

NJH3046G

Europe

PAL-G

E21 - 69 CH

Test Signal Generator

NJH3046M

Hong Kong / China

PAL- I

E21 - 69 CH

Test Signal Generator

NJH3046E

Germany

PAL-BG / I

E21 - 69 CH

Test Signal Generator

NJH3046E

United Kingdom

PAL-BG / DK

E21 - 69 CH

Test Signal Generator

NJH3046E

Europe

PAL-BG / DK

E21 - 69 CH

Test Signal Generator

NJH3046E

Germany

PAL - I / DK

E21 - 69 CH

Test Signal Generator

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NJH3091 series

3-in-1 RF Module (TV Tuner, IF Demodulator and RF Modulator)

Electrical Specifications

Supply Voltage

MOD: + 5V, +B: +9V, PB: 5V,
TU: +33V

Receiving Channel

USA 2 - B, C - W+11, W+12 - 69 CH

Output Channel

USA 3/4 CH

IF

Picture: 45.75MHz
Sound: 41.25MHz

Input Impedance

Video: 75 Ohm Audio: 10 kOhm

Input Signal Level

Video: 1 Vp-p Audio: 1.41 Vp-p

Output Signal Level

Video: 1 Vp-p (Color Bar 87.5% Mod.

Audio: 240mVrms (1kHz / 25kHz Dev.)

Line-up

Part Number

Destination

TV System

Output Channel

Additional Feature

NJH3091U

USA

NTSC-M

USA 3 / 4 CH

Off-Trough Switch
Built-in PLL circuit

Remarks) I2C bus type is available.

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NJH3021 series

TV Tuner for NTSC system

Electrical Specifications

Supply Voltage

MOD: + 5V, +B: +9V, PB: 5V, TU: +33V

Receiving Channel

USA 2 - B, C - W+11, W+12 - 69 CH

Output Channel

USA 3/4 CH

IF

Picture: 45.75MHz
Sound: 41.25MHz

Input Impedance

Video: 75 Ohm Audio: 10 kOhm

Input Signal Level

Video: 1 Vp-p Audio: 1.41 Vp-p

Output Signal Level

Video: 1 Vp-p (Color Bar 87.5% Mod.

Audio: 240mVrms (1kHz / 25kHz Dev.)

Line-up

Part Number

Destination

TV System

I/O

Additional Feature

NJH3021U

USA

NTSC-M

Serial Interface

(3 wire type)

Built-in PLL
circuit

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Copyright 1996 NJR CORPORATION. All rights reserved.
Last updated:
4/30/98