EM92601AP_技术文档

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

EM92600AP

EM92600AM

EM92601AP

EM92601AM

Package

DIP

SOP

DIP

SOP

Channel Selection

parallel

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

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

1

EM92600/1A

DUAL PLL FOR 46/49 MHZ CORDLESS PHONE

FUNCTIONAL BLOCK DIAGRAM

V

DD

VSS

XTAL0

VDD

Reference

counter

XTAL1

5K

divide by 2048

VDD

Lock

LD

detector

phase

detector

Phase

detector

PDR

PDT

14 bits divide by N

receive counter

14 bits divide by N

Transmit counter

RIF

TIF

b13-b0

b27-b14

ROM 32*28

& decoder logic

SB

D1

MODE

D0

D2

D3

EM92600A block diagram

VDD

VSS

XTAL0

VDD

Reference

counter

XTAL1

5K

divide by 2048

VDD

Lock

LD

detector

phase

detector

Phase

detector

PDR

RIF

PDT

14 bits divide by N

receive counter

14 bits divide by N

Transmit counter

TIF

b13-b0

b27-b14

4 bits

latch

ROM 32*28

& decoder logic

4 bits

S/R

SB MODE

EN

CLKDI

EM92601A block diagram

PIN DESCRIPTIONS

Symbol

XTALO

Pin No.

Function

O

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.

MODE

SB

I

V_DD=base,V_SS=remote.

The standby pin is uses to save power when no transmit. Internal pull down.

High: transmit and receive active

Low: receive acts only

5K

O

The signal derived from the reference oscillator. 5KHz output.

* This specification are subject to be changed without notice.

4.23.1995

2

EM92600/1A

DUAL PLL FOR 46/49 MHZ CORDLESS PHONE

Symbol

D0

D1

D2

D3

Di

I/O

Function

I

The channel selected pin. LSB.(intenal pull down)

The channel selected pin. (internal pull down)

The channel selected pin. MSB.(internal pull down)

The serial input data pin.

CLK

Clock input. Each low to high transition of the clock shifts one bit of data into

the on-chip shift register.

Not connect.

NC

EN

-

I

The enable pin controls the data transfer from the shift register to the 4-bit latch.

A low to high transition latches the data.

TIF

I

Input to programmable divider of Tx. AC coupling with VCO. Min input voltage

is 200mVpp.

LD

PDT

O

Unlock detector output. V_DDlevel: unlock.

Phase detector output for Tx. PDT detects the phase error from Tx PLL and its

output is connected to external low pass filter.

V_SS

-

Ground.

PDR

O

Phase detector output for Rx. PDR detects the phase error from Rx PLL and its

output is connected to external low pass filter.

RIF

I

Input of programmable divider for Rx.AC coupling with VCO. Min input voltage

is 200mVpp.

V_DD

XTAL1

-

I

Power supply.

To connect crystal ( 10.240MHz ) and capacitor.

ABSOLUTE MAXIMUM RATINGS

Symbol

Rating

Value

Unit

V_DD

DC supply voltage

-0.5 to +6

-0.5 to V_DD+0.5

10.0

V

V_IN

Input voltage

V

I_IN,I_OUT

I_DD,I_SS

T_A

DC current drain per pin

DC current drain V_DDor V_SSpins

Operating temperature range

Storage temperature range

mA

°C

30.0

-30 to +75

-65 to +150

T_STG

* This specification are subject to be changed without notice.

4.23.1995

3

EM92600/1A

DUAL PLL FOR 46/49 MHZ CORDLESS PHONE

DC ELECTRICAL CHARACTERISTICS

(T_A= 25°C unless otherwise noted )

Parameter

Sym. Min.

Typ.

Max. Unit

Condition

Operating voltage

Input voltage

V_DD

V_IL

V_IH

V_OL

V_OH

I_IL

2.5

-

5.5

0.8

V

V_DD=3V

2.2

Output voltage

0.05

V

2.95

Input low current

µA

v_IL=0

-36

-0.06

-

pin 16,14,9

pin 2~8

Input high current

Output current

I_IH

µA

v_IH=V_DD-0.5V

pin 16,14,9

pin 2~8

V_OH=2.6V

V_OL=0.4V

V_DD=3V, note1

V_DD=3V, note2

-

36

120

I_OH

I_OL

I_DS

I_DO

-0.2

0.2

mA

Standby current

Operating current

1.5

3.0

mA

(0.2Vp-p input at RIF,TIF)

3-state leakage current

I_OZ

-

±1

µA

V_DD=5V

Note 1: XTALin: 10.24MHz ; MODE:V_DD; SB:V_SS; TIF=20MHz(200 mVp-p); RIF=40MHz(200 mVp-p); others

are open.

Note 2: XTALin: 10.24MHz ; MODE:V_DD; SB:V_DD; TIF=20MHz(200 mVp-p); RIF=40MHz(200 mVp-p); others are

open.

AC ELECTRICAL CHARACTERISTICS

Parameter

Sym. Min.

Typ.

Max. Unit

Condition

Output rise time

Output fall time

Input rise and fall time

OSC in

Maximum frequency

input =sine wave 0.2Vp-p

T_R

T_F

T_R

200

5

nS

µS

V_DD=3V

XTAL1

V_DD=3V

XTAL1

T_F

F_MAX

12

50

MHz RIF (V_DD=3V)

TIF

Setup time data to clock

Enable to clock

T_SU

100

200

EM92601A only

nS

Hold time

clock to data

Recovery time

Enable to clock

Input pulse width

clock and Enable

T_H

T_REC

T_W

80

nS

EM92601A only

* This specification are subject to be changed without notice.

4.23.1995

4

EM92600/1A

DUAL PLL FOR 46/49 MHZ CORDLESS PHONE

TIMING DIAGRAM

D2

th

D1

D3

D0

Data

tsu

tw

Clock

1 st

2 nd

CLK

1 st

CLK

3 rd

CLK

4 th

CLK

tw

tsu

trec

Enable

EM92601A Timing

1.6µS

PDT

LD

6.4±0.4mS

Unlock Timing

APPLICATION CIRCUIT

0.455MHz

1ST

2ND

MIX

BPF

MIX

1ST IF

2ND IF

TX

VCO

RX

VCO

BPF

LPF

9

8

16 15 14

10

13 12 11

10.240

MHz

4

1

2

3

7

5

6

* This specification are subject to be changed without notice.

4.23.1995

5

EM92600/1A

DUAL PLL FOR 46/49 MHZ CORDLESS PHONE

DIVIDE RATIO AND VCO FREQUENCIES

Base

Input

Rx (Fref=5KHz)

Tx=(Fref=5KHz)

(MODE=1)

CH

D3

0

1

0

D2

D1

0

1

0

1

0

1

0

1

0

D0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

FRx (MHz) FVCO(MHz)

N

FTx(MHz) FVCO(MHz)

N

0

1

0

1

0

1

2

3

4

5

6

7

8

9

10

49.670

49.845

49.860

49.770

49.875

49.830

49.890

49.930

49.990

49.770

49.970

38.975 7795

39.150 7830

39.165 7833

39.075 7815

39.180 7836

39.135 7827

39.195 7839

39.235 7847

39.295 7859

39.275 7855

46.610

46.630

46.670

46.710

46.730

46.770

46.830

46.870

46.930

46.970

46.610

46.630

46.670

46.710

46.730

46.770

46.830

46.870

46.930

46.970

9322

9326

9334

9342

9346

9354

9366

9374

9386

9394

REMOTE

(MODE=0)

Input

Rx (Fref=5KHz)

Tx=(Fref=5KHz)

CH

D3

0

1

0

D2

0

1

0

1

0

D1

0

1

0

1

0

1

0

1

0

D0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

FRx (MHz) FVCO(MHz)

N

FTx(MHz) FVCO(MHz)

N

1

2

3

4

5

6

7

8

9

10

46.610

46.630

46.670

46.710

46.730

46.770

46.830

46.870

46.930

46.970

35.915

35.935

35.975

36.015

36.035

36.075

36.135

36.175

36.235

36.275

7183

7187

7195

7203

7207

7215

7227

7235

7247

7255

49.670

49.845

49.860

49.770

49.875

49.830

49.890

49.930

49.990

49.970

49.670

49.845

49.860

49.770

49.875

49.830

49.890

49.930

49.990

49.970

9934

9969

9972

9954

9975

9966

9978

9986

9998

9994

* This specification are subject to be changed without notice.

4.23.1995

6


型号：	EM92601AP
厂家：	ELAN MICROELECTRONICS CORP
描述：	DUAL PLL FOR 46/49 MHZ CORDLESS PHONE 双锁相环46/49 MHZ无绳电话无绳技术电话
文件：	总6页 (文件大小：56K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

EM92601AP [ELAN]

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