ml7019 ETC-unknow, ml7019 Datasheet - Page 3

• Manufacturer Part Number: ml7019
• Description: Single Rail Dual Channel Codec
• Manufacturer: ETC-unknow

v PIN DESCRIPTION
l ML7019
AIN1, AIN2, GSX1, GSX2
AOUT1, AOUT2
AIN1 and AIN2 are the transmit analog inputs for channels 1 and 2.
GSX1 and GSX2 are the transmit level adjustments for channels 1 and 2.
AIN1 and AIN2 are inverting inputs for the op-amp; GSX1 and GSX2 are
connected to the output of the op-amp and are used to adjust the level, as shown
below.
When not using AIN1 and AIN2, connect AIN1 to GSX1 and AIN2 to GSX2. During
power saving and power down mode, the GSX1 and GSX2 outputs are at AG
voltage.
AOUT1 is the receive analog output for channel1 and AOUT2 is used for channel2.
The output signal has an amplitude of 3.4Vpp above and below the signal ground
voltage(SG).When the digital signal of +3dBm0 is input to DIN, it can drive a load of
600
During power saving or power down mode, these outputs are at the voltage level of
SG with a high impedance.
CH1
CH2
Analog
Input
Analog
Input
or more.
C1
C2
R1
R3
R2
R4
AIN1
GX1
AIN2
GX2
SG
SG
-
+
-
+
CH1 Gain
CH2 Gain
Gain = R2/R1
R1: Variable
R2
C1
Gain = R4/R3
R3: Variable
R4
C2
20K
20K
1/ (2 3.14 30 R1)
1/ (2 3.14 30 R3)
10
10
3