4

SL6679

ELECTRICAL CHARACTERISTICS (1) (Cont.)

Electrical Characteristics (1) are guaranteed over the following range of operating conditions unless otherwise stated

T

125

°C, V

Characteristic

Value

Typ.

Min.

LO inputs (12, 14) driven in quadrature:

45mVrms at 450MHz, CW.

Mixer inputs (3, 5) driven differentially:

0·45mVrms at 450·004MHz, CW.

As gain to TPI

As gain toTPI

TPI, TPQ signals limiting

No signal applied

2400 baud

1200 baud

512 baud

Pin 26 logic high

Pin 26 logic low

Pin 26 logic tristate (open circuit)

42

42

0

45

0·0

10·7

20·9

3·5

1·7

0·74

Conditions

Mixers

LO DC bias voltage

Gain to TPI

Gain to TPQ

Match of gain to TPI

and TPQ

Audio AGC

IAGC OP max. sink current

IAGC OP leakage current

AFC

AFC DC current

AFC DC current

Bit Rate Filter Control

BRF CNT input logic high

BRF CNT input logic low

Tristate I/P current window

BRF 1 output current

BRF 1 output current

BRF 1 output current

BRF CNT input high current

BRF CNT input low current

Pin

12,14

3,5,8,12

3,5,14,

17

3,5,8,

12,14,17

30

30

19

19

19

26

26

26

27

27

27

26

26

38

38

21

10·2

20·3

0

20·4

27·5

27·5

Max.

46

46

11

1

20·2

0·1

10·4

115

17·5

V

dB

dB

dB

µA

µA

µA

µA

µA

V

V

µA

µA

µA

µA

µA

µA

Units