EM92600/1A
EM92600/1A
DUAL PLL FOR 46/49 MHZ CORDLESS PHONE
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
EM92600AP
EM92600AM
EM92601AP
EM92601AM
Package
DIP
SOP
DIP
SOP
Channel Selection
parallel
parallel
serial
serial
PIN ASSIGNMENTS
EM92600A
EM92601A
XTALO
MODE
SB
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
XTALI
XTALO
MODE
SB
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
XTALI
VDD
VDD
RIF
RIF
5K
PDR
5K
PDR
DI
VSS
D0
VSS
CLK
NC
PDT
LD
D1
PDT
LD
D2
EN
TIF
D3
TIF
* This specification are subject to be changed without notice.
4.23.1995
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