Datasheet AN8539SH Datasheet (Panasonic)

ICs for Mobile Communication

AN8539SH

300 MHz-band single PLL IC

■ Overview

The AN8539SH is a 300 MHz-band, 2nd local
OSC PLL IC designed for a cellular phone which
allows IF switching to high or low.

■ Features

• To be switched to two frequencies.

(Select by SELECT pin.)

• Analog SW built-in

• I

= 900 µA

CC

■ Applications

• Cellular phone

■ Block Diagram

LD

10

SELECT

9

0.5

0.1±0.1

0.5±0.2

REF

8

Unit: mm

1

5

4.3±0.30

6.3±0.30

SSOP010-P-0225

CC

V

7

6

SW

10

6

+0.1

0.2±0.1

3.0±0.30

0.625±0.100.625±0.10

1.5±0.2

–0.05

0.15

Lock detection

14-bit R counter

Phase comparator

Selector

1

CPSUB

15-bit N counter

1/16, 1/17 prescaler

2

CP

3

GND

4

IFIN

5

PS

1

AN8539SH ICs for Mobile Communication

■ Pin Descriptions

Pin No. Symbol Description I/O Level

1 CPSUB Sub charge pump output O CMOS
2 CP Charge pump output O CMOS
3 GND GND pin 
4 IFIN IF input I ECL
5 PS Power save control I CMOS
6 SW Sub charge pump control I CMOS
7VCCPower supply pin 
8 REF Reference frequency input I ECL
9 SELECT IF frequency changeover control I CMOS

10 LD Lock detection output O CMOS

■ Absolute Maximum Ratings

Parameter Symbol Rating Unit

Supply voltage V
Supply current I

2

Power dissipation
Operating ambient temperature
Storage temperature

Note)*1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.

2: Ta = 85°C

*

*

1

*

1

*

CC

CC

P

D

T

opr

T

stg

3.6 V

3.5 mA

12.6 mW

−30 to +85 °C

−55 to +125 °C

■ Recommended Operating Range

Parameter Symbol Range Unit

Supply voltage V

CC

■ Electrical Characteristics at VCC = 2.7 V, f

Parameter Symbol Conditions Min Typ Max Unit

Consumption current 1 I

Consumption current 2 I

Reference signal input level V
High-level input voltage V
Low-level input voltage V
High-level input current I
Low-level input current I

2

SELECT = high  0.90 1.21 mA

CC1

At 178 MHz lock
Power save mode  010µA

CC2

At PS = GND setting

REFINfREFIN

IH

IL

IH

IL

= 12.8 MHz 0.5  1.2 V[p-p]

At VIH = 2.16 V applied − 10 1 µA
At VIL = 0 V applied − 10 1 µA

= 12.8 MHz, V

REFIN

2.55 to 3.3 V

= 0.6 V[p-p], Ta = 25°C

REFIN

2.16  3.30 V
0  0.54 V

ICs for Mobile Communication AN8539SH

■ Electrical Characteristics at VCC = 2.7 V, f

= 12.8 MHz, V

REFIN

= 0.6 V[p-p], Ta = 25°C

REFIN

(continued)

• Design reference data at Ta = −30°C to 80°C

Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.

Parameter Symbol Conditions Min Typ Max Unit

Consumption current 1 I
Consumption current 2 I
IF input level V
Reference signal input level V
Output leak current I
Charge pump output current 1 I
Charge pump output current 2 I

SELECT = high, at 178 MHz lock  0.90 1.34 mA

CC1

SELECT = low, at 129.55 MHz lock  0.83 1.27 mA

CC2

IFINfIFIN

REFINfREFIN

OZ

OH

OL

= 100 MHz to 350 MHz − 10 +2dBm

= 10 MHz to 25 MHz 0.5  1.2 V[p-p]

At VOZ = 0 V, 2.7 V applied − 1.0 +1.0 µA
At VOH = 2.16 V applied − 0.67 − 0.48 − 0.30 mA
At VOL = 0.54 V applied 0.32 0.51 0.72 mA

■ Terminal Equivalent Circuits

Pin No. Equivalent circuit Description

1 Pin 1: CPSUB
2 Pin 2: CP

2

CP

CPSUB

1

SW

3  GND
4 IFIN input

4

4.5 kΩ

4.5 kΩ

5 PS input

Pin 5

9

6 SW input

6

3

AN8539SH ICs for Mobile Communication

■ Terminal Equivalent Circuits (continued)

Pin No. Equivalent circuit Description

7  V
8 REF

10 kΩ

8

9 Refer to pin 5 SELECT inpuit

10 LD output

10

CC

■ Application Notes

1. Input level characteristics

1) IF input level characteristics

Upper limit

10

0

(dBm)

−10

Lower limit

Input level

−20

−30

−40

50 100 150 200 250 300 350

Ta = −30°C, 25°C, 85°C

Input frequency (MHz

V

Ta = 85°C

Ta = −30°C

= 2.55 V to 3.3V

CC

Ta = 25°C

)

4

ICs for Mobile Communication AN8539SH

■ Application Notes (continued)

1. Input level characteristics (continued)

2) REF input level characteristics

= 2.55 V to 3.3V

V

CC

Upper limit

20

Ta = −30°C, 25°C, 85°C

10

(dBm)

0

Lower limit

Ta = 25°C

Input level

−10

Ta = −30°C

−20

−30

0 5 10 15 20 25 30

Input frequency (MHz

Ta = 85°C

)

2. Characteristics specification

1) IF select specification
SELECT pin control enables you to switch IF as below:

SELECT = low → f
SELECT = high→ f

= 129.55 MHz, fR = 50 kHz (P = 16, N = 161, A = 15, R = 256)

OUT

= 178 MHz, fR = 400 kHz (P = 16, N = 27, A = 13, R = 32)

OUT

2) Unlock detection and LD output specification
LD output is high in a lock mode and low in an unlock mode. Lock signal is outputted in a power save mode.

SELECT = high: Detection time is 2.6 µs. About detection accuracy, when a dividing output shifts

by ±(78 × 3) ns for f

= 400 kHz, it generates an unlock output.

REF

SELECT = low : Detection time is 20 µs. About detection accuracy, when a dividing output shifts

by ±(78 × 3) ns for f

= 50 kHz, it generates an unlock output.

REF

3) Power save control specification
When power save control pin (PS) is high, it is set to an operating mode. When it is low, it is set to power save mode.

4) Analog SW control specification
CPSUB is controlled by SW pin.

SW = low : CPSUB open
SW = high : CPSUB operation

5) Other specification
Set CMOS input pins, such as PS pin, SW pin, SELECT pin, etc., normally to VCC or GND.

5

AN8539SH ICs for Mobile Communication

■ Application Circuit Example

LD

10

Lock detection

14-bit R counter

Phase comparator

Selector

1

CPSUB

1.8 kΩ

1.5 kΩ

SELECT

9

2
CP

4.7 kΩ

6 800 pF

0.056 µF

REFIN

f

1 000 pF

REF
8

3

GND

CC

V

1 000 pF

7

15-bit N counter

1/16, 1/17 prescaler

4

IFIN

1 000 pF

SW

6

5

PS

47 Ω

1 000 pF

f

OUT

f

IFIN

VCO

6