CXA1977R View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXA1977R

10-bit 20MSPS A/D Converter

Sony Semiconductor 

CXA1977R

Pin No. Symbol I/O Pin voltage

Equivalent circuit

Description

39 VINL

I +2V to +4V

VINL 39

11.2k

11.2k

42 AVCC

Analog input

(Lower comparator

VREF input)

44 AGND

40 VINH

I +2V to +4V VINH 40

42 AVCC

— +5V (Typ.)

7, 13,

19, 27

N.C.

—

—

28, 36,

37, 38, N.C.

41, 43

—

—

26k

26k

42 AVCC

Analog input

VREF (Upper comparator

input)

44 AGND

Analog power supply

Open.

Not connected to

internal circuit, but

connection to DGND

(digital ground) is

recommended.

Open.

Not connected to

internal circuit, but

connection to AGND

(analog ground) is

recommended.

–5–

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