ONKYO CR-305X User Manual

15

16

Vcc

1

2

3

4

5

6

7

8

9

10

1

1

12

13

14

15

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

Level shift

4

BTL

 AMP

4

Level shift

1

BTL

 AMP

1

BTL

 AMP

3

BTL

 AMP

2

Level shift

3

Level shift

2

RESET

Regulator

Pin No.

Pin Name

Description (Function)

1

V

CC

Power supply (shorted with pin 30)

2

Mute

ON/OFF control for all BTL AMP outputs

3

V

IN

1

BTL AMP 1 input

4

VG1

BTL AMP 1 input (for gain control)

5

V

O

1

BTL AMP 1 output (non-inverting side)

6

V

O

2

BTL AMP 1 output (inverting side)

7

GND

GND (minimum electric potential)

8

GND

GND (minimum electric potential)

9

GND

GND (minimum electric potential)

10

V

O

3

BTL AMP 2 output (inverting side)

11

V

O

4

BTL AMP 2 output (non-inverting side)

12

VG2

BTL AMP 2 input (for gain control)

13

V

IN

2

BTL AMP 2 input

14

REG OUT

Connection for collector of external transistor (PNP); 5 V supply output

15

REG IN

Connection for base of external transistor (PNP)

16

RES

Reset output

17

C

D

Reset output delay time setting (with capacitor)

18

V

IN

3

BTL AMP 3 input

19

VG3

BTL AMP 3 input (for gain control)

20

V

O

5

BTL AMP 3 output (non-inverting side)

21

V

O

6

BTL AMP 3 output (inverting side)

22

GND

GND (minimum electric potential)

23

GND

GND (minimum electric potential)

24

GND

GND (minimum electric potential)

25

V

O

7

BTL AMP 4 output (inverting side)

26

V

O

8

BTL AMP 4 output (non-inverting side)

27

VG4

BTL AMP 4 input (for gain control)

28

V

IN

4

BTL AMP 4 input

29

V

REF

Reference voltage input for level shift circuit

30

V

CC

Power supply (shorted with pin 1)

Vcc

V

ref

VIN4

VG4

V

o8

V

o7

GND

GND

GND

V

o6

V

o5

VG3

VIN3

CD

RES

Vcc

Mute

VIN1

VG1

V

o1

V

o2

GND

GND

GND

V

o3

V

o4

VG2

VI2

Reg OUT

Reg IN

+

(4)

(3)

(5)

(6)

(12)

(11)

(16)

(1)

(2)

(10)

(9)

Measurement

circuit

Differential

decoder

Bi-phase

decoder

PLL

1187.5 Hz

PLL

57 kHz

RDS/ARI

Reference

clock

(13)

(14)

(7)

(8)

120 k

100 k

100 k

Analog
Power supply

Digital
power supply

anti-aliasing

filter

8ch Switched

capacitor filter

Comparator

RCLK

QUAL

RDATA

T2

T1

XO

X1

VSS2

VDD2

VSS1

VDD1

VREF

MUX

VSS3

CMP

       Pin name

Demodulator quality

Demodulator data

Reference voltage

Input

Analog power supply

GND

Comparator input

Test input

Digital power supply

Crystal oscillor

              -      

Demodulator clock

                          Function

Good data : High , bad data : Low

Refer to output data trimming

1/2 VDD1

Composite signal input 

4.5 V to 5.5 V

                      -

C-junction 

Open or connected to ground

4.5 V to 5.5 V

Connects to 4.332 MHz oscillator

                      -

1187.5 Hz clock 

Pin No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Symbol

QUAL

RDATA

Vref

MUX

VDD1

Vss1

Vss3

CMP

T2

T1

VDD2

Vss2

XI

XO

(NC)

RCLK