CXA2647 View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXA2647

RF Signal Processor for CD Players

Sony Semiconductor 

CXA2647N

Characteristics Graphs

(Vcc = 3.0V, DVcc = 3.0V)

1. EQ characteristics Input: Pin 3 EQ_IN

Output: Pin 15 RFAC

1-1. EQ ROM/RW characteristics

25

Pin 26 RFC = 100kΩ

Pin 25 VFC = VC

20 Pin 24 BST = VC

Pin 23 RFG = VC

15

RW

10

5

ROM

0

1-2. EQ fc control characteristics

25

ROM mode

Pin 26 RFC = 100k/33kΩ

20

Pin 25 VFC = control

Pin 24 BST = VC

Pin 23 RFG = VC

15

RFC = 100kΩ

VFC = VC + 1V

10

VFC = VC

VFC = VC – 1V

RFC = 33kΩ

VFC = VC

VFC = VC + 1V

5

0

–5

–5

–10

1k

–10

10k

100k

1M

10M

10k

100k

1M

10M

100M

[Hz]

[Hz]

1-3. EQ boost control characteristics

1-4. EQ gain control characteristics

25

ROM mode

Pin 26 RFC = 100k/33kΩ

20 Pin 25 VFC = VC

Pin 24 BST = control

Pin 23 RFG = VC

15

10 RFC = 100kΩ

BST = VC + 1V

5

BST = VC

BST = VC – 1V

30

25

RFG = VC + 1V

RFC = 33kΩ

BST = VC + 1V 20

BST = VC

BST = VC – 1V

15 RFG = VC

10

RFG = VC – 1V

0

5

RW mode

Pin 26 RFC = 100kΩ

–5

0 Pin 25 VFC = VC

Pin 24 BST = VC

Pin 23 RFG = control

–10

–5

10k

100k

1M

10M

100M

1k

10k

100k

1M

10M

[Hz]

[Hz]

– 20 –

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