CXD2728Q 데이터 시트보기 (PDF) - Sony Semiconductor

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CXD2728Q

Single-Chip Dolby Pro Logic Surround Decoder

Sony Semiconductor 

CXD2728Q

2-2. When Pro Logic mode is off

Unless otherwise specified, the measurement conditions are as given below.

• Input data = 0dBFS (= 0dB), 1kHz, 16 bits

• Sampling frequency = 44.1kHz

• Measured bands = 10Hz to 20kHz

Item

Measurement conditions Channels Min. Typ.

L, R

98

S/N ratio

"A" weighting filter

C

97

S

95

(THD + N)/S∗1

L, R

0.005

C, S

0.003

L, R

97

Dynamic range∗2

"A" weighting filter

C

96

Output level∗3

S

94

(all)

2.01

∗1 See Graphs 2 and 3.

∗2 S/(THD + N) during –60dB input

∗3 The output level depends on the supply voltage (AVDn) as shown in the formula below.

AVDn [V]

Output level [Vrms] = 2.01 [Vrms] ×

3.3 [V]

Max. Unit

dB

%

dB

Vrms

5

2

1

0.500

0.200

0.100

0.050

0.020

0.010

0.005

0.002

0.001

–60 –50 –40 –30 –20 –10 0

GEN VOLT [dBFS]

Graph 2. DAC Characteristics (L, Rch)

5

2

1

0.500

0.200

0.100

0.050

0.020

0.010

0.005

0.002

0.001

–60 –50 –40 –30 –20 –10 0

GEN VOLT [dBFS]

Graph 3. DAC Characteristics (C, Sch)

– 11 –

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