M61323SP datasheet(8/20 Pages) RENESAS

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M61323SP/FP

REJ03F0201-0201 Rev.2.01 Mar 31, 2008

Page 8 of 19

Freq. Characteristic 3, 4

Measure the FC3, FC4 when SG5 of input signal. (For reference)

Crosstalk between Two Inputs 1, 2

1. The conditions is as table. This measurement shall use active probe.

2. Set SW13 to GND, input SG3 to pin 2 only. Read the output amplitude of TP31. The value is as VOR3.

3. Then set SW13 to OPEN, read the output amplitude of TP31. The value is as VOR3'.

4. Crosstalk between two inputs 1 C.T.I.1 is

C.T.I.1 = 20log

(dB)

VOR3 [VP-P]

VOR3' [VP-P]

5. In the same way, calculate C.T.I.1 in response to inputs in pin 4 and pin 6 only.

6. Then set SW13 to OPEN, input SG2 to pin 10 only. Read the output amplitude of TP31. The value is as VOR4.

7. Set SW13 to GND, read the output amplitude of TP31. The value is as VOR4'.

8. Crosstalk between two inputs 1 C.T.I.2 is

C.T.I.2 = 20log

(dB)

VOR4 [VP-P]

VOR4' [VP-P]

9. In the same way, calculate C.T.I.2 in response to inputs in pin 12 and pin 14 only.

Crosstalk between Two Inputs 3, 4

Set SG4 as the input signal, and then the same method as table, measure C.T.I.3, C.T.I.4.

Crosstalk between Channels 1, 2

1. The conditions is as table. This measurement shall use active probe.

2. Set SW13 to GND, input SG3 (0.7 VP-P) to pin 2 only. Read the output amplitude of TP31. The value is as VOR5.

3. Next, measure TP28, TP25 in the same state, and the amplitude is as VOG5, VOB5.

4. Crosstalk between channels1 C.T.C1 is

C.T.C1 = 20log

(dB)

VOR5

VOG5 or VOB5

5. In the same way, calculate C.T.C1 in response to inputs in pin 4 and pin 6 only.

6. Then set SW13 to OPEN, input SG3 (0.7 VP-P) to pin 10 only.

Read the output amplitude of TP31. The value is as VOR6.

7. Next, measure TP28, TP25 in the same state, and the amplitude is as VOG6, VOB6.

8. Crosstalk between two inputs 1 C.T.C2 is

C.T.C2 = 20log

(dB)

VOR6

VOG6 or VOB6

9. In the same way, calculate C.T.C2 in response to inputs in pin 9 and pin 11 only.

Crosstalk between Channels 3, 4

Set SG4 as the input signal, and then the same method astable, measure C.T.C3, C.T.C4.

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