SL1027P_1 Datasheet, PDF (4/8 Pages) AUK corp – DUAL PREAMPLIFIER WITH ALC

SL1027P
Test Method
Sym-
Switch Position
bol _{SW 1 SW 2 SW 3 SW 4 SW 5}
I_CCQ
2
OFF OFF
1 OFF
G_VO
1
ON OFF 1 OFF
G_V
1 OFF ON
1 OFF
V_OM
1
OFF ON
1 OFF
THD 1 OFF ON
SW1-1
1→2
CH_{SEP SW1-2} OFF ON
2→1
V_NI
2
OFF ON
1 OFF
1 OFF
1 OFF
AW 1 OFF OFF 2 ON
ACB 1 OFF OFF 2 ON
AD 1 OFF OFF 2 ON
SW 6
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
Measure-
ment
Test Method
Location
-
Read ammeter
a, b
a, b
b
G_VO = 20log(V_O / V_IN ) [dB]
G_V = 20log(V_O / V_IN ) [dB]
Measure output voltage(V_O)
at THD=1%
b
Measure distortion factor
at V_O=0.5V
b
Measure crosstalk of amp
1,2 at output voltage V_O = 0dBm
c
Convert output noise voltage
at 1KHz gain when Rg = 2.2KΩ
Input voltage range from when input
b
voltage V_IN =-60dBm until output
voltage V_O goes up 3dB
Output voltage V_O level difference of
b
amp 1,2 when input voltage V_IN =
-20dBm is applied.
b
Measure distortion factor when input
voltage V_IN = -20dBm is applied.
Information of Operating
1. ALC Circuit
The ALC circuit is consist of Q1, Q2 and some external components. The output level of
amplifier is rectified by external circuits and this rectified DC level is applied to the ALC
input terminal(Pin 7).
V cc
+
6
5
7
Q1
Q2
+
AMP
2
-
1
4
+
+
Signal
Input
KSI-W021-001
4