U2893B datasheet(2/14 Pages) TEMIC

2 / 14 page

U2893B

TELEFUNKEN Semiconductors

Rev. A1, 29-Jan-76

Preliminary Information

2 (14)

Pin Description

NMDO

VS1

VSP

CPO

GNDP

CPC

GND

MDO

PUMIX

MDLO

NRF

VS2

MIXLO

GND

MIXO

GND

NND

VS3

12495

NRD

Figure 2. Pinning

Symbol

Function

In-phase baseband input

Complementary to I

MDLO

I/Q-modulator LO input

GND 1)

Negative supply

MDO

I/Q-modulator output

NMDO

Complementary to MDO

VS1 3)

Positive supply (I/Q MOD)

VSP

Pos. supply charge-pump

CPO

Charge-pump output

GNDP 2)

Neg. supply charge pump

CPC

Charge-pump current control

(input)

PUMIX

Power-up, mixer only

R-divider input

NRD

Complementary to RD

Mode control

N-divider input

NND

Complementary to ND

GND 1)

Negative supply

Power-up, whole chip except

mixer

MIXLO

Mixer LO input

VS2 3)

Positive supply (MISC.)

Mixer RF-input

NRF

Complementary to RF

GND 1)

Negative supply

MIXO

Mixer output

VS3 3)

Positive supply (mixer)

Complementary to Q

Quad.-phase baseband input

All GND pins must be connected to GND

potential. No DC voltage between GND pins!

Max. voltage between GNDP and GND pins

v 200 mV

The maximum permissible voltage difference

between pins VS1, VS2 and VS3 is 200 mV.

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