CXD2721Q-1 データシートの表示（PDF） - Sony Semiconductor

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CXD2721Q-1

Single-Chip Digital Signal Processor for Karaoke

Sony Semiconductor 

CXD2721Q-1

2. DAC Characteristics

Characteristics using the measurement circuit in Fig. 2, including the built-in post filter. Unless otherwise

specified, the measurement conditions are as given below.

• DATA ....0dB (= FS), 1kHz, 16bit

• fs ...........44.1kHz

Item

Measurement conditions

Min. Typ. Max. Unit

S/N ratio

EIAJ (with "A" weighting filter)

97

dB

THD + N

EIAJ (0dB)

EIAJ (–1dB)

0.009

%

0.005

Dynamic range

EIAJ (–60dB)

94

dB

Channel separation

EIAJ

118

dB

Level difference between channels EIAJ

0.05

dB

Output level

EIAJ

1.11

Vrms

3. Filter Characteristics

Block

Prefilter

Post filter

Item

Min. Typ. Max. Unit

Feedback resistance value

10

kΩ

Maximum amplification ratio (100kHz or less)

20 dB

Load resistance value

10

kΩ

Cut-off frequency (= fc)

90

kHz

1.00

0.10

0.01

–60 –50 –40 –30 –20 –10 0 10

(2Vrms)

Analog input level [dB]

Graph 1.

– 11 –

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