FM Tuner

Copyright © 2008 by Silicon Laboratories

4.3.08

Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.

Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders

Si4702/03-C19

Broadcast FM Radio Tuner for Portable Applications

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Input Frequency

76

—

108

MHz

Sensitivity

(S+N)/N = 26 dB

—

1.1

—

µV EMF

Input IP3

AGC disabled

—

106

—

dBµV EMF

Adjacent Channel Selectivity

±200 kHz

—

50

—

dB

Alternate Channel Selectivity

±400 kHz

—

70

—

dB

RCLK Frequency

—

32.768

—

kHz

RCLK Frequency Tolerance

–200

—

200

ppm

Audio Output Voltage

72

80

90

mVrms

Audio Band Limits

±1.5 dB

30

—

15k

Hz

Audio S/N

—

59

—

dB

Audio THD

—

0.1

0.5

%

Supply Voltage

2.7

—

5.5

V

Interface Supply Voltage

1.5

—

3.6

V

Ambient Temperature

–20

25

85

°C

Supply Current

—

14.4

—

mA

Powerdown Current

—

8.5

12

µA

Seek/Tune Time

—

—

60

ms/channel

SCLK Frequency

3-wire operation

—

—

2.5

MHz

2-wire operation

—

—

400

kHz

Powerup Time

From powerdown

—

—

110

ms

Selected Electrical Specifications

Pin Assignments

GND

PAD

1

GND

LOUT

ROUT

RST

NC

GND

GND

FMIP

RFGND

2

5

4

3

6

15

12

13

14

7

10

9

8

11

17

18

19

20

16

Package Information

Table 1. Package Dimensions

Symbol

Millimeters

Symbol

Millimeters

Min

Nom

Max

Min

Nom

Max

A

0.50

0.55

0.60

f

2.53 BSC

A1

0.00

0.02

0.05

L

0.35

0.40

0.45

b

0.18

0.25

0.30

L1

0.00

—

0.10

c

0.27

0.32

0.37

aaa

—

—

0.10

D

3.00 BSC

bbb

—

—

0.10

D2

1.65

1.70

1.75

ccc

—

—

0.08

e

0.50 BSC

ddd

—

—

0.10

E

3.00 BSC

eee

—

—

0.10

E2

1.65

1.70

1.75