SM5866AS datasheet(9/23 Pages) NPC

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SM5866AS

NIPPON PRECISION CIRCUITS INC.—9

PCM Mode Analog Characteristics

Measurement Conditions

Analog Characteristics

Digital ﬁlter

: NPC SM5847AF

Op-amp

: JRC NJM5534D

Supply voltage

SM5866AS

: DVDD = CVDD = AVDDA = AVDDB = 5V,

DVSS = CVSS = AVSSA = AVSSB = 0V

SM5847AF

+ 3.3V

NJM5534D

± 15V

Mode settings

: D-Mode

Measurement temperature

: 25

°C

Input data

: 44.1kHz sampling, 24-bit data, no dither

System clock

: 22.5792MHz (512fs), 64fs operation

Measurement equipment

: Audio Precision System Two (RMS mode)

Filter conditions

: THD

+ N 22Hz HPF, 20kHz LPF (FLP-A20K) Unweighted

D.R

22Hz HPF, 22kHz LPF, A-weight (FIL-AWT)

S/N

22Hz HPF, 22kHz LPF, A-weight (FIL-AWT)

Measurement circuit

: Refer to “Measurement circuit”.

Parameter

Symbol

Conditions

Rating

Unit

min

typ

max

LSI output level1

1. Input stage I/V op-amp, U101 output level (when R101 = 0

Ω)

Vout1

1 kHz, 0 dB

1.23

1.28

1.33

Vrms

Evaluation board output level

Vout2

1 kHz, 0 dB

–

5.7

–

Vrms

Total harmonic distortion

THD

+ N

1 kHz, 0 dB

–

0.0005

(–106dB)

0.0010

(–100dB)

Dynamic range

D.R

1 kHz,

−60 dB

106

112

–

Signal-to-noise ratio

S/N

1 kHz, 0 dB/

−∞

117

120

–

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