SILAN SC62446 Datasheet

Silan
Semiconductors

SC62446

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0 2000.12.31

1

6CH ELECTRIC VOLUME WITH
TONE CONTROL

DESCRIPTION

The SC62446 is 6 channels electric volume controlled 3-wire
serial data. The IC is suitable for use in home-use audio
systems and TV sets.

FEATURES

• Electric volume
Volume level⋅⋅⋅⋅⋅⋅⋅⋅0dB~-79dB, -∞dB (1dB/step)

• Tone control
Bass/treble, 0dB ~ ±10dB (2dB/step)

• 4 output ports

• Built-in microcomputer interface circuit controlled by 16-

bit serial data.

QFP-48

SDIP-42

QFP-44

APPLICATIONS

• DVD

• TV

• Home audio equipment

RECOMMENDED OPERATING CONDITIONS

Supply voltage range ±4.5~±7.3V (analog)

4.5~5.5V(digital)

Rated supply voltage ±7.0V (analog)

5.0V (digital)

Silan
Semiconductors

SC62446

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0 2000.12.31

2

PIN CONFIGURATIONS

33 32 31 30 29 28 27 26 25 24 23

34
35
36
37
38
39
40
41

43
44

42

22
21
20
19
18
17
16
15

13
12

14

1 2 3 4 5 6 7 8 9 10 11

CL1

NC

AV

SS

Lout

Rout

NC

Cout

SLout

SRout

SWout

AGND

GNDS

Cin

DGND

LATCH

DATA

CLK

DVDD

OUT4

OUT3

OUT2

OUT1

AVDD

Swin

SRin

SLin

GNDC

GNDR

Rin

GNDL

Lin

BypassR

BypassL

LTRE

LBASS3

LBASS2

LBASS1

RBASS1

RBASS2

RBASS3

RTRE

CRL2

CRL1

CL2

SC62446

QFP-44

1 2 3 4 5 6 7 8 9 10 11 12

13

14

15

16

17

18

19

20

21

22

23

24

36 35 34 33 32 31 30 29 28 27 26 25

48

47

46

45

44

43

42

41

40

39

38

37

SC62446

LATCH

DATA

CLK

DVDDOUT4

OUT3

OUT2

OUT1

AVDDSWIN

GNDS

NC

SRIN

SLIN

GNDC

C

IN

NC

NC

NC

GND

R

RIN

GND

L

NC

LIN

BY PASSR

BY PASSL

LTRE

LBASS3

LBASS2

LBASS1

RBASS3

RBASS1

RBASS2

RTRE

CR2

CR1

CL2
CL1

AV

SS

L

OUT

R

OUT

C

OUT

NC

SL

OUT

SR

OUT

SW

OUT

AGND
DGND

QFP-48

Silan
Semiconductors

SC62446

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0 2000.12.31

3

PIN CONFIGURATIONS

(Continued)

SC62446

SDIP-42

DVDD

CLK

DATA

LATCH

DGND

AGND

SWout

SRout

SLout

Cout

Rout

Lout

AVSS

CL1

CL2

CR1

CR2

RTRE

RBASS3

RBASS2

RBASS1

2223242526272829303132333435363738394042 41

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

OUT3

OUT4

OUT2

OUT1

AVDD

SWin

GNDS

SRin

SLin

GNDC

Cin

GNDR

Rin

GNDL

Lin

BYPASSRBYPASS

L

LTRE

LBASS3

LBASS2

LBASS1

BLOCK DIAGRAM

MCU I/F

tone

volume

volume

volume

volume

volume

volume

1

3

2

4

5

6

7

8

10

9

11

12

13

14

15

17

16

18

19

20

21

42

40

41

39

38

37

36

35

33

34

32

31

30

29

28

26

27

25

24

23

22

tone

OUT3

OUT4

OUT2
OUT1
AVDD

SWin

GNDS

SRin

SLin

GNDC

Cin

GNDR

Rin

GNDL

Lin

BYPASSR

BYPASSL

LTRE
LBASS3
LBASS2
LBASS1

DVDD
CLK
DATA
LATCH
DGND
AGND
SWout
SRout
SLout
Cout
Rout
Lout
AVSS
CL1
CL2
CR1
CR2
RTRE
RBASS3
RBASS2
RBASS1

OUTPUT

PORT

Silan
Semiconductors

SC62446

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0 2000.12.31

4

ABSOLUTE MAXIMUM RATING

Characteristic Symbol Value Unit

Supply Voltage V

DD

15 V

Powerdissipation P

D

1000 mW

Thermal derating

K∂

10

mW/°C

Storage temperature T

STG

-65 ~ +150

°C

Operating Temperature T

OPR

-40~+80

°C

ELECTRICAL CHARACTERISTICS

(Tamb=25°C, unless otherwise specified)

(1) Power supply characteristics

Parameter Symbol Test condition Min Typ Max Unit

Analog Positive Circuit Current AI

DD

Current at pin 5 No signal -- 25 35 mA

Analog Negative Circuit Current AI

SS

Current at pin 30 No signal -- 25 35 mA

Digital Circuit Current DI

DD

Current at pin 42 No signal -- 0.5 2.0 mA

(2) Input/output characteristics

Parameter Symbol Test condition Min Typ Max Unit

Input Resistance R

I

13, 15, 16, 17, 27, 29 pin 35 70 150 KΩ

Maximum Output Voltage

VOM

6,8,9,11,13,15,16,17pin INPUT
31~36 pin OUTPUT
RL=10KΩ, THD=1%

3.0 4.0 -- Vrms

Pass Gain

G

V

VI=0.2Vrms, FLAT
6,8,9,11,13,15,16,17pin INPUT
31~36 pin OUTPUT

-2.0 0 2.0 dB

Distortion

THD

BW=400~30KHz
V

I

=0.2Vrms, RL=10KΩ

-- 0.02 0.09 %

Vn(VOL)

31~36pin, Rg=1KΩ,
JIS-A, VOL=0dB

-- 2 6 µVrms

Output Noise Voltage

Vn

(tone)

31,32pin, Rg=1KΩ
JIS-A, VOL=0dB

-- 8 20 µVrms

Maximum Attenuation

ATT

MAX

31~36pin, Rg=1KΩ
JIS-A, VOL= -

∞

dB

-86 -- -- dB

Volume Gain Between Channel D

VOL

-1.5 0 1.5 dB

Cross Talk Between Channel

CT

VO=0.5Vrms, RL=10KΩ,
JIS-A Rg=1KΩ

-- -80 -65 dB

Port Output Current IL RL=22KΩ 0.2 -- -- mA

Silan
Semiconductors

SC62446

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0 2000.12.31

5

(3) Tone control characteristics

Parameter Symbol Test condition Min Typ Max Unit

T-10dB -12 -10 -8 dB

T-8dB -10 -8 -6 dB
T-6Db -7.5 -6 -4.5 dB
T-4dB -5.5 -4 -2.5 dB

T-2dB -3 -2 -1 dB
T+2dB 1 2 3 dB
T+4dB 2.5 4 5.5 dB
T+6dB 4.5 6 7.5 dB
T+8dB 6 8 10 dB

Tone control voltage gain

T+10dB

V

O

=0.2Vrms, f=1KHz TIEBLE

(f=10KHz) BASS(f=100Hz)

81012dB

Balance between channel

BALT

Input pin 13, 15 VO=0.2Vrms
Output pin 31, 32

-1.5 0 +1.5 dB

RECOMMENDED OPERATING CONDITION

Parameter Symbol Min Typ Max Unit

Analog positive supply voltage AVDD 4.5 7.0 7.3 V
Analog negative supply voltage AVSS -7.3 -7.0 -4.5 V
Digital supply voltage DVDD 4.5 5.0 5.5 V
High-level input voltage VIH DVDD/2+1 -- DVDD V
Low-level input voltage VIL DGND -- DVDD/2-1 V

DIGITAL BLOCK TIMING REGULATION

Parameter Symbol Min Typ Max Unit

CLOCK cycle time tor 8 -- -­CLOCK pulse width (“H” level) tWHC 3.2 -- -­CLOCK pulse width (“L” level) tWLC 3.2 -- -­CLOCK, DATA, LATCH rise time tr -- -- 0.8
CLOCK, DATA, LATCH fall time tf -- -- 0.8
DATA setup time tSD 1.6 -- -­DATA hold time tHD 1.6 -- -­LATCH setup time tSL 2 -- -­LATCH pulse width tWHL 3.2 -- --

µsec