PT2399 データシートの表示（PDF） - Princeton Technology

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コンポーネント説明

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PT2399

Echo Processor IC

Princeton Technology 

FUNCTION DESCRIPTION

ECHO MODE

Please refer to the diagram below:

AUTO RESET FUNCTION

The waveform of the signal during power on is given below:

PT2399

TABLE 1: VCO FREQUENCY VS DELAY TIME

R

fck

td

THD

27.6K

2.0M

342ms

1.0%

21.3K

2.5M

273ms

0.8%

17.2K

3.0M

228ms

0.63%

14.3K

3.5M

196ms

0.53%

12.1K

4.0M

171ms

0.46%

R

fck

td

THD

7.2K

6.0M

113.7ms

0.29%

6.4K

6.5M

104.3ms

0.27%

5.8K

7.0M

97.1ms

0.25%

5.4K

7.5M

92.2ms

0.25%

4.9K

8.0M

86.3ms

0.23%

R

fck

td

THD

2.8K

11M

61.6ms

0.18%

2.4K

12M

56.6ms

0.16%

2K

13M

52.3ms

0.15%

1.67K

14M

48.1ms

0.15%

1.47K

15M

45.8ms

0.15%

R

fck

td

THD

723

19M

36.6ms

0.14%

519

20M

34.4ms

0.13%

288

21M

32.6ms

0.13%

0.5

22M

31.3ms

0.13%

Notes:

1. R = VCO External Resistor (Ω), please refer to PT2399 Application Circuit.

2. fck = VCO Clock Frequency (Hz).

3. td = Delay Time

4. THD = Total Harmonic Distortion

5. We do not recommend the “R” value below 1KΩ when power on.

10.5K

4.5M

151ms

0.41%

4.5K

8.5M

81ms

0.22%

1.28K

16M

43ms

0.15%

9.2K

5.0M

136.6ms

0.36%

4K

9.0M

75.9ms

0.21%

1.08K

17M

40.6ms

0.14%

8.2K

5.5M

124.1ms

0.33%

3.4K

10M

68.1ms

0.19%

894

18M

38.5ms

0.14%

V1.6

4

February 2010

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