MC145502P View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

MC145502P

PCM Codec-Filter Mono-Circuit

Motorola => Freescale 

R0

– 48 V

N=1

N=2

N=1

R0

10 kΩ

10 kΩ

VAG VDD

RxO RDD

+ Tx

RCE

TxI

RDC

– Tx

TDC

Mu/A TDD

PDI

TDE

VSS

VLS

MC145503

23a. Simplified Transformer Hybrid Using MC145503

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

MC145503

NOTE: Hybrid Balance by R5 and R6 to equate the RxO signal gain at Txl through the

inverting and non–inverting signal paths.

23b. Universal Transformer Hybrid Using MC145503

Figure 23. Hybrid Interfaces to the MC145503 PCM Codec–Filter Mono–Circuit

MC145500•MC145501•MC145502•MC145503•MC145505

18

MOTOROLA

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