LC75344MD_技术文档

Ordering number : EN7332A

LC75344MD

CMOS LSI

http://onsemi.com

Two-Channel Electronic

Volume Control System

Overview

The LC75344MD is a two-channel electronic volume control IC that is controlled by data input over a serial interface.

Functions

 Volume control: 0 dB to –50 dB in 1 dB steps, –52 dB to –78 dB in 2 dB steps, and –, for a total of 66 positions.

A balance function can be implemented by controlling the left and right channels independently.

Features

 Built-in buffer amplifiers minimize the number of external components required.

 Fabricated in a silicon gate CMOS process to minimize the switching noise generated by internal switches.

 Built-in reference voltage generation circuit for the analog ground level.

 All settings are controlled by data input over a serial interface that conforms to the CCB specifications.

Specifications

Absolute Maximum Ratings at Ta = 25C, V = 0V

SS

Parameter

Symbol

Conditions

Ratings

unit

V

max

V

11

–0.3 to +11.0

Maximum supply voltage

DD

CE, CL, DI

LIN, RIN

OSC

Input voltage

max

1

V

IN

V

–0.3 to V

+0.3

300

SS

DD

V

–0.3 to V

OUT

DD

Output voltage

2

S1 to S87, COM1 to COM4, P1 to P8

–0.3 to V

LCD

Allowable power dissipation

Operating temperature

Storage temperature

Pd max

Topr

Ta ≤ 75°C *1: When mounted on a PCB.

mW

C

–30 to +75

Tstg

–40 to +125

C

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,

damage may occur and reliability may be affected.

SOIC-10 NB

 CCB is ON Semiconductor® ’s original format. All addresses are managed

by ON Semiconductor® for this format.

 CCB is a registered trademark of Semiconductor Components Industries, LLC.

ORDERING INFORMATION

See detailed ordering and shipping information on page 13 of this data sheet.

Semiconductor Components Industries, LLC, 2014

May, 2014

51914HK 20120417-S00003/21004TN(OT) No.7332-1/13

LC75344MD

Allowable Operating Ranges at Ta = 30 to +75C, V = 0V

SS

Ratings

typ

Parameter

Symbol

Pin Name

Conditions

Unit

min

max

V

DD

Supply voltage

4.5

2.0

10

V

DD

High-level input voltage

CL, DI, CE

LIN, RIN

CL

IH

7.5 ≤ V

4.5 ≤ V

≤ 10

V

0.8

0.3

V

DD

SS

Low-level input voltage

V

IL

≤ 7.5

V

DD

SS

Input voltage amplitude

Input pulse width

Setup time

V

Vp-p

s

kHz

IN

SS

DD

tøW

1

tsetup

thold

fopg

CL, DI, CE

CL

1

Hold time

Operating frequency

500

Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended

Operating Ranges limits may affect device reliability.

Electrical Characterristics at Ta = 25C, V

DD

= 9V, V = 0V

SS

Ratings

typ

Parameter

Symbol

Rin

Pin Name

LIN, RIN

Conditions

Unit

min

max

Input resistance

50

k

Overall Characteristics

Ratings

typ

Parameter

Symbol

Conditions

Unit

min

max

0.01

VIN = 1 Vrms, f = 1 kHz

0.002

%

With all settings flat overall

VIN = 1 Vrms, f = 20 kHz

With all settings flat overall

VIN = 1 Vrms, f = 1 kHz, Rg = 1 k

With all settings flat overall

80 kHz L.P.F, Rg = 1 k

With all settings flat overall

VIN = 1 Vrms, f = 1 kHz

Total harmonic distortion

THD

0.003

6.0

Crosstalk

CT

90

dB

V

dB

Output noise voltage

Maximum attenuation

V

N

Vomin

92

With all settings flat overall

VDD – VSS = +9 V

Current drain

IDD

IIH

IIL

12

mA

A

High-level input current

Low-level input current

CL, DI, CE: VIN = 10 V, VDD = 10 V

CL, DI, CE: VIN = 0 V, VDD = 10 V

10

10

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be

indicated by the Electrical Characteristics if operated under different conditions.

No.7332-2/13

LC75344MD

Package Dimensions

unit : mm

SOIC-10 NB

CASE 751BQ

ISSUE B

2X

NOTES:

0.10

C

A-B

1. DIMENSIONING AND TOLERANCING PER

ASME Y14.5M, 1994.

D

2. CONTROLLING DIMENSION: MILLIMETERS.

3. DIMENSION b DOES NOT INCLUDE DAMBAR

PROTRUSION. ALLOWABLE PROTRUSION

SHALL BE 0.10mm TOTAL IN EXCESS OF ’b’

AT MAXIMUM MATERIAL CONDITION.

4. DIMENSIONS D AND E DO NOT INCLUDE

MOLD FLASH, PROTRUSIONS, OR GATE

BURRS. MOLD FLASH, PROTRUSIONS, OR

GATE BURRS SHALL NOT EXCEED 0.15mm

PER SIDE. DIMENSIONS D AND E ARE DE-

TERMINED AT DATUM F.

5. DIMENSIONS A AND B ARE TO BE DETERM-

INED AT DATUM F.

6. A1 IS DEFINED AS THE VERTICAL DISTANCE

FROM THE SEATING PLANE TO THE LOWEST

POINT ON THE PACKAGE BODY.

D

H

A

2X

0.10

C A-B

F

10

1

6

E

5

L2

A3

SEATING

PLANE

L

C

0.20

C

10X

b

DETAIL A

B

2X 5 TIPS

M

MILLIMETERS

0.25

C

A-B

D

DIM MIN

MAX

1.75

0.25

0.51

5.00

4.00

TOP VIEW

A

A1

A3

b

1.25

0.10

0.17

0.31

4.80

3.80

10X

h

X 45

0.10

C

0.10

C

D

E

M

e

1.00 BSC

H

5.80

6.20

h

L

L2

M

0.37 REF

A

0.40

0.80

DETAIL A

e

SIDE VIEW

A1

SEATING

PLANE

0.25 BSC

C

0

8

END VIEW

GENERIC

MARKING DIAGRAM*

RECOMMENDED

SOLDERING FOOTPRINT*

10

1.00

PITCH

10X

0.58

XXXXX

ALYWX

1

XXXXX = Specific Device Code

6.50

A

L

= Assembly Location

= Wafer Lot

Y

W

= Year

= Work Week

= Pb−Free Package

1

10X

1.18

DIMENSION: MILLIMETERS

*This information is generic. Please refer

to device data sheet for actual part

*For additional information on our Pb−Free strategy and soldering

details, please download the ON Semiconductor Soldering and

Mounting Techniques Reference Manual, SOLDERRM/D.

No.7332-3/13

LC75344MD

Pin Arrangement

9

7

6

10

LC75344MD

2

3

4

5

1

Top view

Equivalent Circuit

- +

+ -

1F

LIN

1F

RIN

+

10

1

- +

+ -

PA

LOUT

2.2F

ROUT

+

2

9

8

V

DD

SS

3

Vref

CE

22F

DI

+

7

6

4

5

CL

 COM

No.7332-4/13

LC75344MD

Control System Timing and Data Format

The LC75344MD is controlled by inputting the stipulated data serially to the CL, DI, and CE pins. The data

consists of a total of 24 bits, of which 8 bits are the address and 16 bits are the data.

CE

DI

B0 B1 B2 B3 A0 A1 A2 A3

D0

D1 D2 D3 D4 D5

D9 D10 D11 D12 D13 D14 D15

CL

1s 1s 1s

CE

min min min

1s

min

CL

DI

1s

min

1s ≤ TDEST

 Address Code (B0 to A3)

The data has an 8-bit address field, and conforms to the CCB serial bus specifications.

Address code

(LSB)

B0

0

B1

0

B2

0

B3

1

A0

0

A1

0

A2

0

A3

1

(88HEX)

No.7332-5/13

LC75344MD

 Control Code Allocations

Volume control

D0

D1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

D2

0

1

0

1

0

1

0

1

0

1

0

D3

0

1

0

1

0

1

D4

0

1

0

D5

0

1

D6

0

D7

0

Operation

0dB

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1dB

2dB

3dB

4dB

5dB

6dB

7dB

8dB

9dB

10dB

11dB

12dB

13dB

14dB

15dB

16dB

17dB

18dB

19dB

20dB

21dB

22dB

23dB

24dB

25dB

26dB

27dB

28dB

29dB

30dB

31dB

32dB

33dB

34dB

35dB

36dB

37dB

38dB

39dB

40dB

Continued on next page.

No.7332-6/13

LC75344MD

Continued from preceding page.

Volume control

D0

D1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

D2

0

1

0

1

0

1

0

1

0

1

0

D3

1

0

1

0

1

0

D4

0

1

0

1

D5

1

0

D6

0

1

D7

0

Operation

41dB

42dB

43dB

44dB

45dB

46dB

47dB

48dB

49dB

50dB

52dB

54dB

56dB

58dB

60dB

62dB

64dB

66dB

68dB

70dB

72dB

74dB

76dB

78dB



1

0

1

0

1

0

1

0

1

0

Channel selection

D8

D9

0

Operation

0

1

0

1

Normally not used

0

RCH

LCH

1

Left and right channels together

Test mode

D10

D11

0

D12

0

D13

0

D14

0

D15

Operation

0

These bits specify the IC test mode. They must be set to zero for normal operation.

No.7332-7/13

LC75344MD

Pin Functions

Pin name

Pin No.

Function

Notes

LIN

1

Volume control inputs

V

DD

RIN

10

VRIN

LOUT

ROUT

2

9

Volume control outputs

V

DD

OUT

Vref

7

VDD 0.5 voltage generator block for the analog

ground level.

V

DD

A capacitor with a value a few times 10 μF must be

inserted between Vref and AVSS (VSS) to minimize

power supply ripple.

Vref

V

8

3

6

Ground

SS

V

Power supply

DD

CE

Chip enable

V

DD

The internal latch data is written and the analog

switches operate at the point this pin goes from high

to low. Data transfer is enabled when this pin is at the

high level.

DI

4

5

Serial data and clock inputs for IC control.

CL

No.7332-8/13

LC75344MD

Equivalent Circuit

LOUT

LIN

0dB

R1=5434

R2=4845

R3=4319

R4=3850

R5=3431

R6=3058

R7=2726

R8=2429

R9=2165

R10=1930

R11=1720

R12=1533

R13=1366

R14=1218

R15=1085

R16=967

R17=862

R18=768

R19=685

R20=610

R21=544

R22=485

R23=432

R24=385

R25=343

R26=306

R27=273

R28=243

R29=216

R30=193

R31=172

R32=153

R33=137

R34=122

R35=108

R36=97

R37=86

R38=77

R39=68

R40=61

R41=54

R42=48

R43=86

R44=77

R45=69

R46=61

R47=55

R48=49

R49=87

R50=77

R53=164

R54=130

R55=104

R56=165

R57=131

R58=104

R59=165

R60=131

R61=104

R62=165

R63=131

R64=104

R65=403

-1dB

-2dB

-28dB

-29dB

-30dB

-31dB

-32dB

-33dB

-34dB

-35dB

-36dB

-37dB

-38dB

-39dB

-40dB

-41dB

-42dB

-43dB

-44dB

-45dB

-46dB

-47dB

-48dB

-49dB

-50dB

-56dB

-58dB

-60dB

-62dB

-64dB

-66dB

-68dB

-70dB

-72dB

-74dB

-76dB

-3dB

-4dB

-5dB

-6dB

-7dB

-8dB

-9dB

-10dB

-11dB

-12dB

-13dB

-14dB

-15dB

-16dB

-17dB

-18dB

-19dB

-20dB

-21dB

-22dB

-23dB

-24dB

-25dB

-26dB

-27dB

R51=130



-78dB

-52dB

-54dB

R52=104



-dB

The right channel is

identical.

LVref

No.7332-9/13

LC75344MD

Reference Voltage Generator Equivalent Circuit

V

DD

20k

The right channel is

identical.

VREF

20k

LVref

Test Circuit

 Total harmonic distortion

1F

1

2

3

4

5

10

9

2.2F

V

DD

8

LC75344MD

22F

7

6

 COM

THDin

The right channel is

identical.

DISTORTION ANALYZER

S.G

No.7332-10/13

LC75344MD

 Output noise voltage

1k

1F

1

2

3

4

5

10

2.2F

9

8

7

6

V

DD

LC75344MD

22F

 COM

The right channel is

identical.

Noise METER

 Crosstalk

S.G

1k

1F

2.2F

1

2

3

10

9

2.2F

V

DD

8

LC75344MD

22F

4

5

7

6

 COM

The right channel is

identical.

Volt METER

Usage Notes

 The states of the internal analog switches are undefined after power is first applied. Muting must be applied

externally until the control data has been sent.

 When performing the initial settings after power is first applied, both the left and right channel initial settings

data must be sent before releasing the external mute.

 Either cover the CL, DI, and CE lines with the ground pattern or use shielded lines to prevent high-frequency

digital noise from entering the analog signal system from these lines.

No.7332-11/13

LC75344MD

Volume Step Characteristics

=9V

=0V

f=1kHz

=0dBV

THD vs. Volume Control Step Characteristics

0

–10

–20

–30

–40

–50

–60

–70

–80

1.0

7

5

V

=9V

=0V

DD

SS

DD

V

SS

3

2

80kHz LPW

V

IN

All settings flat overall.

0.1

7

5

3

2

0.01

7

5

3

2

0.001

7

5

3

2

–90

–100

0.0001

–40

–100 –90 –80 –70 –60 –50 –40 –30 –20 –10

0

–30

–20

–10

0

10

ILC05483

Step

Volume Step

ILC05482

THD vs. Input Level Characteristics

THD vs. Frequency Characteristics

0.1

1.0

7

5

7

V

=9V

=0V

V

=9V

=0V

80kHz LPW

DD

SS

DD

SS

5

3

2

3

2

80kHz LPW

All settings flat overall.

0.1

7

5

0.01

7

5

3

2

0.01

7

5

3

2

V = –10dBV

IN

3

2

0dBV

0.001

7

5

0.001

7

5

3

2

3

2

0.0001

–40

2

3

5

7

2

3

5

7

2

3

5

7

2

3

5

7

–30

–20

–10

0

10

ILC05485

¹⁰⁰⁰— Hz

10

100

10000

100000

ILC05484

Input level — dBV

Frequency

Crosstalk Characteristics

THD vs. Supply Voltage Characteristics

0.01

0

–10

–20

–30

–40

–50

–60

–70

–80

V

=9V

=0V

V

=9V

=0V

DD

SS

DD

SS

7

5

80kHz LPW

All settings flat overall.

f=1kHz

=0dBV(LIN)

Vin = 1 kΩ, terminated (RIN)

ROUT Measured

V

IN

3

2

0.001

7

5

100Hz

–90

3

–100

6

7

8

9

10

11

12

ILC05487

2

3

5

7

2

3

5

7

2

3

5

7

2

3

5 7

10

100

1000

10000

100000

ILC05486

Supply voltage — V

— Hz

Frequency

No.7332-12/13

LC75344MD

ORDERING INFORMATION

Device

Package

Shipping (Qty / Packing)

2500 / Tape & Reel

SOIC-10 NB

(Pb-Free / Halogen Free)

LC75344MD-AH

ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number

of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at

www.onsemi.com/site/pdf/Patent-Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no

warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the

application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental

damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual

performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts.

SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as

components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which

the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any

such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors

harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or

death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the

part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.

PS No.7332-13/13


型号：	LC75344MD
厂家：	ONSEMI
描述：	Two-Channel Electronic Volume Control System
文件：	总13页 (文件大小：154K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LC75344MD [ONSEMI]

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