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ML145503EP Datasheet(PDF) 19 Page - LANSDALE Semiconductor Inc.

Part # ML145503EP
Description  PCM Codec-Filter Mono-Circuit
PDF  26 Pages
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Manufacturer  LANSDALE [LANSDALE Semiconductor Inc.]
Direct Link  http://www.lansdale.com
Logo LANSDALE - LANSDALE Semiconductor Inc.

ML145503EP Datasheet(HTML) 19 Page - LANSDALE Semiconductor Inc.

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ML145502, ML145503, ML145505
LANSDALE Semiconductor, Inc.
Figure 24. Hybrid Interfaces to the ML145502 PCM Codec–Filter Mono–Circuit
R1
R3
R6
2
× R2
R4
R5 + R6
1 –
1 +
–
=
R0 = 600
Ω
R0 = 900
Ω
N = 1
N = 1
N = 2
R0
R5
R4
R3
R6
R0
R2
R1
– 48
VSS
+ Vref
VAG
RxO
RxG
RxO
+ Tx
TxI
– Tx
Mu/A
PDI
VSS
VLS
MSI
TDE
TDD
CCI
TDC
RDC
RCE
RDD
VDD
RSI
ML145502
NOTE: Balance by R5 and R6 to equate the Txl gains through the inverting
and non–inverting input signal paths, respectively, is given by:
24a. Universal Transformer Hybrid Using ML145502
Tx Gain = R1/R2
Rx Gain = 1 + R3/R4
R5, R6
≈ 10 kΩ
Adjust Rx Gain with R3
Adjust Tx Gain with R1
R1
R2
R3
R4
R5
R5 + R6
R0
10 k
Ω
24b. Single–Ended Hybrid Using ML145502
+ Vref
VAG
RxO
RxG
RxO
+ Tx
TxI
– Tx
Mu/A
PDI
VSS
VLS
MSI
TDE
TDD
CCI
TDC
RDC
RCE
RDD
VDD
RSI
ML145502
N = 1
N = 1
– 48
20 k
Ω
N = 2
20 k
Ω
10 k
Ω
VSS
R0 = 600
R0 = 900
R0
T
R
www.lansdale.com
Page 19 of 26
Issue A



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