Harman Kardon AVR140 Service Manual page 75

AVR140
MITSUMI
MM1511
Item
Consumption current
Y input pin voltage
C input pin voltage
Output pin voltage
Voltage gain
Frequency characteristic
Differential gain
Differential phase
Y output dynamic range
C output dynamic range
C input impedance
Output impedance
MITSUMI
MM1511 ~ MM1512
· Switch Status
Item
Consumption current
Voltage gain
Frequency characteristic
· Measurement Procedures
Consumption current
Voltage gain
Frequency characteristic
Differential gain
Differential phase
Y output dynamic range
C output dynamic range
Symbol Measurement conditions
I Refer to measurement procedures
CC
V
YIN
V
CIN
V
OUT
G Refer to measurement procedures
V
fc Refer to measurement procedures
DG Refer to measurement procedures
DP Refer to measurement procedures
V Refer to measurement procedures
DY
V Refer to measurement procedures
DC
Zi
Zo
Switch status
Symbol
S1 S2
I 2 2
CC
1 2
G
V
2 1
1 2
fc
2 1
Connect a DC ammeter to the V
I
CC1
short the ammeter to use.
Input a 2.0V
G voltage is V1 and TP2 voltage is V2, find G
V
In the above G
fc MM1512) is V3, find fc by the following formula.
Input a 2.0V
DG to SG2, and measure differential gain at TP2.
DP The same as for DG, but measure differential phase.
Input a 100kHz sine wave to SG1. Measure V
V
DY
amplitude under THD 1%, at TP2.
Input an APL 50% luminance signal to SG1 and input a chroma
signal to SG2. Change the chroma signal amplitude and measure
V
DC
V , the maximum amplitude where there is no waveform
DC
distortion at TP2.
Video Switch · 75 driver · Y/C mix MM1501
No-signal, no-load
No-signal, no-load
No-signal, no-load
Video Switch · 75 driver · Y/C mix MM1501
Item
Differential gain
Differential phase
Y output dynamic range
C output dynamic range
CC
(1.0V for MM1512), 100kHz sine wave to SG1. If TP1
P-P P-P
G = 20LOG (V2/V1) dB
V
measurement, if TP2 voltage at 10MHz (7MHz for
V
fc = 20LOG (V3/V2) dB
(1.0V for MM1512) to SG1, input a chroma signal
P-P P-P
APL = 10 ~ 90%
75
harman/kardon
Min. Typ. Max. Unit
4.4 5.7
2.00 2.20 2.40
1.85 2.05 2.25
1.15
-0.5 0 6.5
-1 0 +0.5
-3 0 +3
-3 0 +3
2.6 2.9
2.0
15
25
Switch status
Symbol
S1
DG 3
DP 3
V 2
DY
V 3
DC
pin and measure. Hereafter,
by the following formula:
V
, the maximum
DY
mA
V
V
V
dB
dB
%
deg
V
V
k
S2
1
1
1
1