MC145506 데이터 시트보기 (PDF) - Motorola => Freescale
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MC145506 Datasheet PDF : 24 Pages
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Freescale Semiconductor, Inc.
R0
–48 V
N=1
N=1
N=2
R0
10 kΩ
10 kΩ
VAG
VDD
RxO RDD
+Tx
RCE
TxI
RDC
–Tx
TDC
Mu/A TDD
PDI
TDE
VSS
VLS
MC145507
(a) Simplified Transformer Hybrid Using MC145507
R0
–48 V
N=1
N=1
N = 2 R4
R3
R5
R6
R2
VAG VDD
RxO RDD
+Tx
RCE
R1
TxI
RDC
–Tx
TDC
R0 = R3 ø R4 ø (R2 + R1) ≅ R3 ø R4
AVout =
R0 ø R4 ø (R2 + R1)
R3 + R0 ø R4 ø (R2 + R1)
R0 ø R4
≅
R3 + R0 ø R4
AV in =
– R1
R2
Mu/A TDD
PDI
TDE
VSS
VLS
MC145507
NOTE: Hybrid balance by R5 and R6 to equate the RxO signal gain at Txl through the
inverting and non–inverting signal paths.
(b) Universal Transformer Hybrid Using MC145507
Figure 23. Hybrid Interfaces to the MC145507 PCM Codec–Filter Mono–Circuit
MC145506•MC145507•MC14550F8or More Information On This Product,
16
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