NJM2540/2543

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Mixer and Oscillator for TV Tuner

DESCRIPTION

The NJM2540/43 are mixer/oscillator especially designed for TV

tuners and consists of mixers, oscillators, IF amplifier and OSC buffer

for VHF,UHF and CATV band, built into one chip.

The NJM2540/43 packaging in SSOP16 are suitable for small-sized

tuners.

The NJM2543 is the reverse pin assignment type of the NJM2540.

FEATURES

• Operating Voltage 5V

• Mixers, Oscillators, IF AMP and OSC buffer on chip

• Bipolar Technology

• Package Outline: SSOP16

BLOCK DIAGRAM

(Note)

Pin numbers in circle are for NJM2540

Pin numbers in parenthesis are for NJM2543

PACKAGE OUTLINE

NJM2540V/NJM2543V

12

3

456

78

16

15

14

13

12

11

10

9

VHF OSC

UHF OSC

OSC BUFF

U/V

SW

UHF MIX

VHF MIX

IF AMP

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

(15)

(16)