CXP402 Просмотр технического описания (PDF) - Sony Semiconductor

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производитель

CXP402

CMOS 4-bit Single Chip Microcomputer

Sony Semiconductor 

CXP402

1-bit DAC, LPF Blocks Analog Characteristics

Analog characteristics (VDD = AVDD = 5.0V, VSS = AVSS = 0V, Ta = 25°C)

Item

Total

harmonic

distortion

Signal-to-

noise ratio

Symbol

Conditions

THD 1kHz, 0dB data

S/N 1kHz, 0dB data (A-filter)

Crystal

384Fs

768Fs

384Fs

768Fs

Min.

Typ.

Max. Unit

0.0050 0.0070

%

0.0045 0.0065

96

100

dB

96

100

Fs = 44.1kHz.

The total harmonic distortion and signal-to-noise ratio are measured by the circuits shown below.

AOUT1 (2)

AIN1 (2)

LOUT1 (2)

12k

12k

150p

680p

12k

SHIBASOKU (AM51A)

22µ

100k

Audio Analyzer

LPF external circuit diagram

768Fs/384Fs

TEST DISC

DATA

Rch

RF

CXP402

Lch

A

Audio Analyzer

B

Block diagram of analog characteristics measurement

(VDD = AVDD = 5.0V, VSS = AVSS = 0V, Topr = –20 to +75°C)

Item

Symbol Min.

Output voltage

VOUT

Load resistance

RL

8

∗ When a sine wave of 1kHz, 0dB is output.

Typ.

1.23∗

Max.

Unit Applicable pins

Vrms

∗1

kΩ

∗1

Applicable pins

∗1 LOUT1, LOUT2

– 15 –

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