SM5879AV

NIPPON PRECISION CIRCUITS—10

AC Analog Characteristics

AC Measurement Circuit and Conditions

Measurement circuit block diagram

Measurement conditions

Parameter

Symbol

Condition

Rating

Unit

min

typ

max

Total harmonic distortion

THD

+ N

1 kHz, 0 dB

–

0.0075

0.015

%

LSI output level

1 kHz, 0 dB

0.65

0.70

0.75

Evaluation board output level

1 kHz, 0 dB

–

0.70

–

Dynamic range

D.R

1 kHz,

−60 dB

86.0

91.0

–

dB

1. Signal-to-noise is measured following a device reset, with DATA = 0 (DI = LOW). Under these conditions, the signal-to-noise ratio includes noise-shaper

noise.

S/N

1 kHz, 0/

−∞ dB

86.0

91.5

–

dB

Channel separation

Ch. Sep

1 kHz,

−∞/0 dB

80.0

87.0

–

dB

Signal

Generator

Evaluation

Board

L/R Channel

Selector

Distortion

Analyzer

CKO(384fs)

BCK

LRCK(fs)

DATA

Left Channel

Right Channel

fs= 44.1kHz

DATA= 16bit

10k

Ω Input Impedance

NF Corporation 3346A

RMS Measurement

Shibasoku AD725C

Symbol

3346A left/right-channel selector

switch

AD725C distortion analyzer with

built-in filter

Total harmonic distortion

THD

+ N

THRU

20 kHz lowpass filter ON

400 Hz highpass filter OFF

Output level

Dynamic range

DR

D-RANGE

Signal-to-noise ratio

S/N

THRU

20 kHz lowpass filter ON

400 Hz highpass filter OFF

JIS A filter ON

Channel separation

Ch. Sep

THRU

20 kHz lowpass filter ON

400 Hz highpass filter OFF

1. Pins LO and RO should have an output load of 10 k

Ω (min).