M52758SP/FP
Electrical Characteristics Test Method (Pin No is FP)
It omits the SW.No accorded with signal input pin because it is already written in Table.
SW A, SW1, SW3, SW5 is in side a if there is not defined specially.
I
CC
1, I
CC
2, Circuit Current (no signal)
The condition is shown as Table. Set SW19 to GND (or OPEN) and SW A to side b, measure the current by current
meter A. The current is as I
CC
1 (I
CC
2).
V
DC1
, V
DC2
Output DC Voltage
Set SW19 to GND (or OPEN), measure the DC voltage of T.P.35 (T.P.30, T.P.27) when there is no signal input. The
DC voltage is as V
DC1
(or V
DC2
).
V
DC3
, V
DC4
Output DC Voltage
Measure the DC voltage of T.P.25 same as Table, the DC voltage is as V
DC3
(or V
DC4
).
Vimax1, Vimax2 Maximum Allowable Input
Set SW19 to GND, SG1 as the input signal of pin 2. Rising up the amplitude of SG1 slowly, read the amplitude of
input signal when the output waveform is distorted. The amplitude is as Vimax1. And measure Vimax1 when SG2 as
the input signal of pin 5, pin 7 in same way. Next, set SW to OPEN, measure Vimax2 when SG2 as the input signal of
pin 11, 13, 16.
G
V1
,
∆G
V1
, G
V2
,
∆G
V2
1. The condition is shown as Table.
2. Set SW19 to GND, SG2 as the input signal of pin 2. At this time, read the amplitude output from T.P.35. The
amplitude is as V
OR
1.
3. Voltage gain G
V1
is
G
V1
= 20log
V
OR
1 [V
P-P
]
0.7 [V
P-P
]
[dB]
4. The method as same as 2 and 3, measure the voltage gain G
V1
when SG2 as the input signal of pin 5, 7.
5. The difference of each channel relative voltage gain is as
∆G
V1
.
6. Set SW19 to OPEN, measure G
V2
,
∆G
V12
in the same way.
G
V3
, G
V4
, Voltage Gain
1. The condition is shown as Table. This test is by active probe.
2. Measure the amplitude output from T.P.25.
3. Measure the G
V3
, G
V4
by the same way as G
V1
,
∆G
V1
, G
V2
,
∆G
V2
.
F
C1
,
∆F
C1
, F
C2
,
∆F
C2
1. The condition is shown as Table. This test is by active probe.
2. Set SW19 to GND, SG2 as the input signal of pin 2. Measure the amplitude output from T.P.35. The amplitude is
as V
OR
1. By the same way, measure the output when SG4 is as input signal of pin 2, the output is as V
OR
2.
3. The frequency characteristic F
C1
is
F
C1
= 20log
V
OR
2 [V
P-P
]
V
OR
1 [V
P-P
]
[dB]
4. The method as same as 2 and 3, measure the frequency F
C1
when input signal to pin 5, 7.
5. The difference between of each channel frequency characteristic is as
∆F
C1
.
6. Set SW19 to OPEN, measure F
C2
,
∆F
C2
.
F
C3
, F
C4
Frequency Characteristic
By the same way as Table measure the F
C3
, F
C4
when SG5 of input signal.
Rev.2.00 Sep 14, 2006 page 6 of 14
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