U4280BM

Preliminary Information

TELEFUNKEN Semiconductors

Rev. A1, 10-Apr-97

5 (9)

Electrical Characteristics

Parameters

Test Conditions / Pins

Symbol

Min.

Typ.

Max.

Unit

Supply voltage range

Pin 1

4.5

5.0

5.5

V

Quiescent supply voltage

Pin 1

6.0

11.6

mA

FM input sensitivity

W

Pin 10

50

25

50

mV

mV

mV

AM input sensitivity

W

Pin 12

25

mV

Oscillator input sensitivity

W

Pin 18

100

mV

2

65535

Switching output, PRT

Pin 5

0.4

0.1

V

V

V

SWO1 to SWO3, AM/FM

(open drain outputs)

Pins 6 to 9

0.4

0.1

V

V

LD (open drain)

Pin 17

0.4

V

Phase detector

PDFM

Pin 14

Output current 1

Output current 2

±400

±100

±500

±125

±600

±150

mA

mA

PDAM

Pin 15

Output current 1

Output current 2

±75

±20

±100

±25

±100

±30

mA

mA

Analog output

Pins 14 and 15 to GND

0.1

–1

0.5

–2

mA

mA

H input voltage, Pins 2 and 3

L input voltage, Pins 2 and 3

3

0

1.5

V

V

Output voltage

0.4

V

Clock frequency

Pin 2

0

110

kHz

Bus timing

Rise time SCL, SDA

1

ms

Fall time SCL, SDA

300

ns

“H” phase SCL

4

ms

“L” phase SCL

4.7

ms

Waiting time START

4

ms

Set up time START

4

ms

Set up time STOP

4.7

ms

Set up time DATA

250

ns

Hold time DATA

0

ms

1)

FM input frequency is additionally divided by two (Pin 10).