PCM69AU 参数 Datasheet PDF下载

Use 400Hz High-Pass

Filter and 30kHz

Low-Pass Filter

Meter Settings

Distortion

Analyzer

(Shiba Soku Model

725 or Equivalent)

Programmable

Gain Amp

0dB to 60dB

Low-Pass

Filter

40kHz 3rd-Order

GIC Type

Binary

Counter

Digital Code

(EPROM)

Parallel-to-Serial

Conversion

DUT

(PCM67/69A)

I-to-V

Converter

OPA627

System Clock

Bit Clock

Word Clock

Sampling Rate = 44.1kHz x 8 (352.8kHz)

Output Frequency = 991Hz

Timing

Logic

FIGURE 12. PCM67/69A THD+N Production Test.

C

10

1000pF

R

5

2kΩ

+5V

11

12

13

14

Digital

In

15

16

17

18

19

20

PCM67

or

PCM69A

10

9

8

7

6

5

4

3

A

1

2

+

1

+ C

3

100µF

R

2

680Ω

R

1

680Ω

V

CC

(+5V)

+C

2

100µF

C

7

10µF

+ C

11

2200pF

C

5

+C

6

R

4

680Ω

R

3

680Ω

+

100µF

C

8

10µF

C

9

1000pF

R

6

2kΩ

+ C

12

2200pF

R

7

200Ω

A

2

OUT R-ch

2.5V

±

1.2V

+

10µF

+

10µF

C

4

R

8

200Ω

OUT L-ch

2.5V

±

1.2V

+ C

1

0.1µF

A

1

, A

2

; NJM2100 or LM833

FIGURE 13. Single +5V Power Supply, with LPF, I/V Amp Application Circuit for Portable Digital Audio.

®

11

PCM67/69A