Marantz SA-17S1 service manual Analog Pins, Q101 CXD1881R

Analog Pins

Name	Type	Description
BYP	—	The RF AGC integration capacitor CBYP, is connected between BYP and VPA.
CP	—	DIFFERENTIAL PHASE TRACKING LPF PIN: The external capacitance is connected between CN.
CN	—	DIFFERENTIAL PHASE TRACKING LPF PIN: The external capacitance is connected between CP.
LCP	—	LENS SHIFT OFFSET CANCEL LPF PIN: The external capacitance is connected between LCN.
LCN	—	LENS SHIFT OFFSET CANCEL LPF PIN: The external capacitance is connected between LCP.
MP	—	MIRR TOP HOLD PIN: The external capacitance is connected to VPB.
MB	—	MIRR BOTTOM HOLD PIN: The external capacitance is connected to VPB.
MEV	—	RFDC BOTTOM ENVELOPE PIN: The external capacitance is connected to VPA.
MLPF	—	MIRROR LPF PIN: An external capacitance is connected to VPB.
TPH	—	PI TOP HOLD PIN: An external capacitance is connected to VPB.
VC	—	REFERENCE VOLTAGE OUTPUT: This pin provides the DC bias reference voltage (VPB/2). Output impedance is less
		than 50 Ω.
V125	—	REFERENCE VOLTAGE OUTPUT: DC bias voltage output and it is also used for servo output reference. (V25/2)
RX	—	REFERENCE RESISTOR INPUT: An external 12.0 k&, 1 % resistor is connected from this pin to ground to establish a
		precise PTAT (proportional to absolute temperature) reference current for the filter.

Q101 : CXD1881R

TOP

TON

I N

A

A

A

DVDRF P

1

6

2

6

1

6

0

2

A T T

DVDRFN

MUX

RFS I N

6

3

2

4

AT T

I NPUT

SE L

I NPUT

I MP

SE L

A

1

2

A

W / L PF

B

GCA

CD_ A

1

6

GCA

W / L PF

C

W / L PF

B

1

1

GCA

D

W / L PF

CD_ B

1

5

GCA

MUX

1 2 d B i s a d d e d

@ h i g h

g a i n mo d e

C

1

0

GCA

CD_ C

1

4

GCA

D

9

GCA

CD_ D

1

3

GCA

3

FROM

S - PORT

CD / DVD

1 2 d B i s a d d e d

@ h i g h g a i n mo d e

6 d B

i s

a d d e d

@ h i g h g a i n mo d e

CD_ E

1

8

GCA

4 d B

CD_ F

1

7

GCA

3

FROM

GCA

S - PORT

Comp .

A 2

3

GCA

EQ

4

B 2

GCA

EQ

C2

5

GCA

EQ

D2

6

GCA

EQ

3

3

VC

FROM

1 2 d B

i s a d d e d

S - PORT

@ h i g h g a i n mo d e

APC SE L

DVD / CD

F r om S - p o r t

LD H / L

DVDPD

2

3

Du a l

APC

AGCO

2

4

CDPD

2

6

2

2

2

1

L DON

CD L D

V D L D

D

A I P

FNP

FNN

D I N

D I P

RFAC

5

9

5

3

5

2

5

5

5

5

7

AGC HOLD

AGC

FAST A t t a c k o f f

PROGRAMMABL E

I NPUT

EQUA L I ZER

FUL L WAVE

AGC

B I AS

F I L TER

RECT I F I ER

CHARGE

D I F FERENT I ATOR

PUMP

2

OUTPUT I NH I B I T

I NPUT

I MP

FROM S - PORT

5

6

BYP

SEL

AGCO

4

9

RX

SSOUT

C l amp

& En v

S I GDET

2

L e v e l

DAC

FROM

B +D

S - PORT

7 0 k H z

5

6 d B , 4 b i

t

SUM

4 d B

Amp .

LPF

O f f s e t

GCA

4

0

FE

A +C

GCA

FROM

c a n s e l

FROM

4 S - PORT

5

P l l

7 0 k H z

S - PORT

LPF

O f f s e t

3

8

P I

c a n s e l

3

5

BCA DET

TOPHLD

COMP

TPH

A +D

SE L

3

4

DF T

FROM

2

DAC

S - PORT

6

1

B u f f

RFDC

B +C

- 6d B @ n o r ma l

TOPHOLD

O f f s e t

GCA

4

1

CE

TOPHOLD

6 d B

c a n s e l

4

6 d B , 4 b i t

Amp

FROM

P I

S - PORT

FE

4

2

MNTR

TE

MNTR

CE

V2 5

Cn t r l

V1 2 5

V2 5 / 3

4

4

LCP

CE - AT T

3

LPF

+ 3 dB

AT T

4

3

LCN

CEPOL

Po l s e l .

b u f f ( -12 d B )

SE L

4 FROM

HLDEN

S - PORT

7

CP

8

CN

MUX

SUB

PHASE

LPF

O f f s e t

GCA

TE

3 9

TE

DETECTOR

c a n s e l

RST

6

3

FROM

FROM

PHASE

CD / DVDCP / CN

CEFDB

S - PORT

S - PORT

L ow

l mp

DETECTOR

f o r s e r v o

o u t p u t

r e f .

3 7

V2 5

V2 5 /2

3 6

V1 2 5

V C I f o r s e r v o i n p u t

CONTROL

VC=VPB / 2

2 0

VC

S i g n a l s

4 8

S i n k c u r r e n t

M i r r

g a i n

T o e a c h

b l o c k

SDEN

F r om S - p o r t

SER I A L PORT

4 7

SDATA

F r om S - p o r t

Comp

2

REG I STER

2

I n p u t l mp

D i s k

d e t &

h y s

& o f f s e

t

4 6

SCLK

F r om S - p o r t

M i r r L PF

F r om S - p o r t

F r om S - p o r t

P l l

2

M I RR

COMP

BOT TOM

V3 3

f o r

4 5

V3 3

ENVELOPE

I NPUT

o u t p u t

b u f f

BUF F

PEAK /

BOT TOM

L I NKEN

MUX

HOLD

I n t e r n a l

5

0

3

2

3

1

3

0

2

8

2

9

FDCHG

3

2

7

5 8

1 9

5 1

2 5

ME V

ME VO

M I N

M L P F

MP

MB

L I NK

M I RR

V P A

V P B

V N A

V N B

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