CS3310电子音量控制芯片

电子音量控制芯片

CS3310

Stereo Digital Volume Control

Features

lComplete Digital Volume Control

Description

The CS3310 is a complete stereo digital volume controldesigned specifically for audio systems. It features a 16-bit serial interface that controls two independent, low dis-tortion audio channels.

The CS3310 includes an array of well-matched resistorsand a low noise active output stage that is capable ofdriving a 600 load. A total adjustable range of 127 dB,in 0.5 dB steps, is achieved through 95.5 dB of attenua-tion and 31.5 dB of gain.

The simple 3-wire interface provides daisy-chaining ofmultiple CS3310’s for multi-channel audio systems.The device operates from ±5 V supplies and has an in-put/output voltage range of ±3.75 V. ORDERING INFORMATION

CS3310-KP0° to 70° CCS3310-KS0° to 70° C

16-pin Plastic DIP16-pin Plastic SOIC

—2 Independent Channels

—Serial Control—0.5 dB Step Size

lWide Adjustable Range

—-95.5 dB Attenuation—+31.5 dB Gain

lLow Distortion & Noise

—0.001% THD+N

—116 dB Dynamic Range

lNoise Free Level Transitions

lChannel-to-Channel Crosstalk Better Than

110 dB

AINL

16

-MUX

8

14812

16

Serial toParallelRegister

8

376

AOUTLZCENCSSDATAISDATAOSCLK

AGNDLAGNDR

1510

ControlRegister

MUX

9

-12VA+

13VA-4VD+

5DGND

11

AOUTR

AINR

Preliminary Product Information

This document contains information for a new product.

Cirrus Logic reserves the right to modify this product without notice.

Copyright © Cirrus Logic, Inc. 1999

(All Rights Reserved)

FEB ‘99DS82PP3

1

电子音量控制芯片

CS3310

ANALOG CHARACTERISTICS (TA = 25 °C, VA+, VD+ = 5V ± 5%; VA- = -5V ± 5%; Rs = 0; RL =

2k ; CL = 20pF; 10 Hz to 20 kHz Measurement Bandwidth; unless otherwise specified)

Parameter

---RINCINTHD+N

8--110(VA-)+1.25

(Note 1)(Note 2)(Note 2)(Note 1)

VOS

--80-100---(Note 2)

IA+ IA- ID+PDPSRR

2-----Typ0.5±0.05±0.0510100.001116-4.2--1100.25-20-5.0 5.0 35052.080

Max-----.0025-(VA+)-1.25

8.4--0.75100--8.0 8.0 80084.0-UnitdBdBdBk pF%dBVµVrmsdBdBmVpFmAMHzmAmAµAmWdB

DC Characteristics

Step Size

Gain Error (31.5 dB Gain)Gain Matching Between ChannelsInput ResistanceInput Capacitance

AC Characteristics

Total Harmonic Distortion plus Noise (V in = 2V rms, 1 kHz)Dynamic Range

Input/Output Voltage RangeOutput Noise

Digital Feedthrough (Peak Component)Interchannel Isolation (1kHz)

Output Buffer

Offset VoltageLoad CapacitanceShort Circuit Current

Unity Gain Bandwidth, Small Signal

Power Supplies

Supply Current (No Load, AIN = 0V)

Power Consumption

Power Supply Rejection Ratio (250Hz)

Notes:1.Measured with input grounded and Gain = 1. Will increase as a function of Gain settings >1.

2.This parameter is guaranteed by design and/or characterization.

2DS82PP3

电子音量控制芯片

CS3310

DIGITAL CHARACTERISTICS (TA = 25 °C, VA+ , VD+ = 5V ± 5%, VA- = -5V ± 5% )

Parameter

High-Level Input VoltageLow-Level Input VoltageHigh-Level Output Voltage Low-Level Output Voltage Input Leakage Current

(I O = 200µA)(I O = 3.2mA)

VIHVILVOHVOLIin

2.0-0.3VD-1.0--Typ----1.0

MaxVD+0.3+0.8-0.410

UnitVVVVµA

SWITCHING CHARACTERISTICS (TA = 25 °C; VA+, VD+ = +5V ± 5%; VA- = -5V ± 5%; CL = 20pF)

Parameter

Serial ClockSerial Clock

Pulse Width HighPulse Width Low

SCLKtphtpl

08080

Typ-----------Max--------3560100

UnitMHznsnsmsnsnsnsnsnsnsns

Low-2.0Input Timing

SDATAI Set Up TimeSDATAI Hold TimeCS Valid to SCLK RisingSCLK Falling to CS High

tSDVStSDHtCSVStLTHtCSHt

SSDtCSDH

20203035---

Output Timing

CS Low to Output ActiveSCLK Falling to Data ValidCS High to SDATAO Inactive

Figure 1. Serial Port Timing Diagram

DS82PP33

电子音量控制芯片

CS3310

RECOMMENDED OPERATING CONDITIONS (DGND = 0V; all voltages with respect to ground)

Parameter

DC Power Supplies:

Positive DigitalPositive AnalogNegative Analog

(VD+) - (VA+) (Note 3)

Ambient Operating Temperature

VD+VA+VA-TA

4.754.75-4.75-0.30

5.05.0-5.0-25

VA+5.25-5.250.070

VVVV°C

Typ

Max

Unit

Notes:3.Applying power to VD+ prior to VA+ creates a SCR latch-up condition. Refer to Figure 2 for the

recommended power connections.

ABSOLUTE MAXIMUM RATINGS (AGND, DGND = 0V, all voltages with respect to ground.)

Parameter

DC Power Supplies:

Positive DigitalPositive AnalogNegative Analog

Input Current, Any Pin Except SupplyDigital Input Voltage

Ambient Operating Temperature (power applied)Storage Temperature

VD+VA+VA-IinVINDTATSTG

-0.3-0.30.3--0.3-55-65

(VA+)+ 0.3

6.0-6.0

±10(VA+) + 0.3+125+150

VVVmAV°C°C

Max

Unit

4DS82PP3

电子音量控制芯片

CS3310

state of SDATAO when CS is high.**Refer to Note 3.

Figure 2. Recommended Connection Diagram

DS82PP35

电子音量控制芯片

CS3310

GENERAL DESCRIPTION

The CS3310 is a stereo, digital volume control de-signed for audio systems. The levels of the left andright analog input channels are set by a 16-bit serialdata word; the first 8 bits address the right channeland the remaining 8 bits address the left channel, asdetailed in Table 1. Resistor values are decoded to0.5dB resolution by an internal multiplexer for atotal attenuation range of …… 此处隐藏：17243字，全部文档内容请下载后查看。喜欢就下载吧 ……