1

* This specification are subject to be changed without notice.

EM92600/1A

DUAL PLL FOR 46/49 MHZ CORDLESS PHONE

4.23.1995

EM92600/1A

DUAL PLL FOR 46/49 MHZ CORDLESS PHONE

GENERAL DESCRIPTION

The EM92600/1A series are developed for 46/49 MHz of 10 channels band frequency of cordless telephone

which is used in U.S.A.. These devices are dual phase-locked loop frequency synthesizers contained ROM

counters for receive and transmit loops with two independent phase detect circuits. A common reference

oscillator and reference divider are share by the receive and transmit circuits.

Other features include a lock detect circuit for the transmit loop, illegal code default, a buffered oscillator output

for mixing purposes in the system, 5KHz tone output . The EM92601A is designed for easy MPU interface. It

provides the same features as the EM92600A , but accepts channel programming via a clocked, serial input

instead of parallel BCD inputs. The EM92600A is selected channels via machanical switches of parallel BCD

input.

FEATURES

• Include oscillation circuit with external X-TAL (10.240 MHz).

• Unlock detector.

• 5KHz output for guard tone.

• Standby mode for power saving.

• 2.5 to 5.5V supply range.

• Baseset/Handset changeable.

• Available in 16 pin DIP or SOP.

• SERIES

Part Number

Package

Channel Selection

EM92600AP

DIP

parallel

EM92600AM

SOP

parallel

EM92601AP

DIP

serial

EM92601AM

SOP

serial

PIN ASSIGNMENTS

XTALO

MODE

SB

5K

D0

D1

D2

D3

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

XTALI

RIF

PDR

PDT

LD

TIF

EM92600A

XTALO

MODE

SB

5K

DI

CLK

NC

EN

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

XTALI

RIF

PDR

PDT

LD

TIF

EM92601A