em92600a ELAN Microelectronics Corp, em92600a Datasheet - Page 2

• Manufacturer Part Number: em92600a
• Description: Dual Pll For 46/49 Mhz Cordless Phone
• Manufacturer: ELAN Microelectronics Corp

FUNCTIONAL BLOCK DIAGRAM
PIN DESCRIPTIONS
* This specification are subject to be changed without notice.
XTALO
MODE
SB
5K
Symbol
Pin No.
XTAL1
XTAL1
PDT
O
O
I
I
TIF
LD
PDT
TIF
LD
V
DD
V
DD
This ouput generates reference frequency when it is connected to pin 16 with
external OSC of which frequency is 10.240MHz
Base/remote changing. Internal pull down.
V
The standby pin is uses to save power when no transmit. Internal pull down.
High: transmit and receive active
Low: receive acts only
The signal derived from the reference oscillator. 5KHz output.
DD
=base,V
detector
detector
Lock
Lock
EM92600A block diagram
EM92601A block diagram
14 bits divide by N
14 bits divide by N
Transmit counter
Transmit counter
XTAL0
XTAL0
SS
SB
SB
=remote.
detector
MODE
detector
phase
phase
b13-b0
b13-b0
& decoder logic
& decoder logic
D3
divide by 2048
divide by 2048
ROM 32*28
ROM 32*28
V
V
Reference
Reference
DD
D2 D1 D0
DD
counter
counter
Function
V
V
14 bits divide by N
14 bits divide by N
SS
DUAL PLL FOR 46/49 MHZ CORDLESS PHONE
SS
receive counter
receive counter
detector
Phase
MODE
detector
Phase
b27-b14
b27-b14
4 bits
latch
EN
CLK
V
4 bits
DD
V
S/R
DD
DI
5K
PDR
RIF
5K
PDR
RIF
4.23.1995
EM92600/1A
2