CDB3310 Cirrus Logic Inc, CDB3310 Datasheet

BOARD EVAL FOR CS3310 COL CTRL

CDB3310

Manufacturer Part Number
CDB3310
Description
BOARD EVAL FOR CS3310 COL CTRL
Manufacturer
Cirrus Logic Inc
Datasheet

Specifications of CDB3310

Main Purpose
Audio, Volume Control
Embedded
No
Utilized Ic / Part
CS3310
Primary Attributes
Stereo Volume Control, 0.5 dB Step Size, Serial Control
Secondary Attributes
-95.5 dB Attenuation, +31.5 dB Gain, 0.001% THD+N, 116 dB Dynamic Range
Product
Audio Modules
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Other names
598-1000
Cirrus Logic, Inc.
www.cirrus.com
Features
Complete Digital Volume Control
— 2 Independent Channels
— Serial Control
— 0.5 dB Step Size
Wide Adjustable Range
— -95.5 dB Attenuation
— +31.5 dB Gain
Low Distortion & Noise
— 0.001% THD+N
— 116 dB Dynamic Range
Noise Free Level Transitions
Channel-to-Channel Crosstalk Better Than
110 dB
AGNDR
AGNDL
AINR
AINL
Stereo Digital Volume Control
16
15
10
9
MUX
MUX
12
VA+
Copyright © Cirrus Logic, Inc. 2005
13
8
8
VA-
(All Rights Reserved)
+
+
-
-
Register
Control
VD+
4
Description
The CS3310 is a complete stereo digital volume control
designed specifically for audio systems. It features a 16-
bit serial interface that controls two independent, low-
distortion audio channels.
The CS3310 includes an array of well-matched resistors
and a low noise active output stage that is capable of
driving a 600 Ω 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 of
multiple 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-KS
CS3310-KSZ, Lead Free
8
8
16
DGND
5
Serial to
Register
Parallel
14
11
0° to 70° C
0° to 70° C
8
1
2
3
7
6
AOUTL
MUTE
ZCEN
CS
SDATAI
SDATAO
SCLK
AOUTR
CS3310
16-pin Plastic SOIC
16-pin Plastic SOIC
SEPTEMBER '05
DS82F1
1

Related parts for CDB3310

CDB3310 Summary of contents

Page 1

Stereo Digital Volume Control Features Complete Digital Volume Control — 2 Independent Channels — Serial Control — 0.5 dB Step Size Wide Adjustable Range — -95.5 dB Attenuation — +31.5 dB Gain Low Distortion & Noise — 0.001% THD+N — ...

Page 2

ANALOG CHARACTERISTICS 2 kΩ pF kHz Measurement Bandwidth; unless otherwise specified) L Parameter DC Characteristics Step Size Gain Error (31.5 dB Gain) Gain Matching Between Channels Input Resistance Input Capacitance AC Characteristics Total ...

Page 3

DIGITAL CHARACTERISTICS Parameter High-Level Input Voltage Low-Level Input Voltage High-Level Output Voltage Low-Level Output Voltage Input Leakage Current SWITCHING CHARACTERISTICS Parameter Serial Clock Serial Clock MUTE Input Timing SDATAI Set Up Time SDATAI Hold Time CS Valid to SCLK Rising ...

Page 4

RECOMMENDED OPERATING CONDITIONS Parameter DC Power Supplies: Ambient Operating Temperature 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 Parameter DC Power Supplies: ...

Page 5

F 10 µ F CONTROLLER 16 AUDIO SOURCE *Required to terminate SDATAI due to high impedance state of SDATAO when CS is high. **Refer to Note 3. Figure 2. Recommended Connection Diagram DS82F1 ** ...

Page 6

GENERAL DESCRIPTION The CS3310 is a stereo, digital volume control designed for audio systems. The levels of the left and right analog input channels are set by a 16-bit serial data word; the first 8 bits address the right channel ...

Page 7

CS SCLK SDATAI SDATAO L0 = Left Channel Least Significant Bit L7 = Left Channel Most Significant Bit SDATAI is latched internally on the rising edge of SCLK SDATAO transitions after the falling edge of SCLK SDATAO bits reflect the ...

Page 8

Changing the Analog Output Level Care has been taken to ensure that there are no audible artifacts in the analog output signal dur- ing volume control changes. The gain/attenuation changes of the CS3310 occur at zero cross- ings to eliminate ...

Page 9

Source impedances equal to or less than 600 ohms will avoid this dis- tortion mechanism for the CS3310. Mute Muting can be ...

Page 10

PCB Layout, Grounding and Power Supply Decoupling As with any high performance device which contains both analog and digital circuitry, careful at- tention to power supply and grounding arrangements must be observed to optimize performance. Figure 2 shows the recommended ...

Page 11

Figure 16k FFT plot demonstrating the crosstalk performance of the CS3310 at 20 kHz. Both channels were set to unity gain. The right channel input is grounded with the left channel driven to 2.65 Vrms output at ...

Page 12

THD+N% vs AMPL (Vrms .01 .001 .0001 0.1 Figure 6. THD+N vs. AMP AMPL (dBr) vs FREQ (Hz) 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2.0 10 100 1k Figure 8. Frequency Response Full Scale Input 0.1000 0.0100 ...

Page 13

PIN DESCRIPTION Zero Crossing Enable Chip Select Serial Data Input Positive Digital Power Digital Ground Serial Clock Input Serial Data Output Power Supply Connections VA+ - Positive Analog Power, Pin 12. Positive analog supply. Nominally +5 volts. VA- - Negative ...

Page 14

Analog Inputs and Outputs AINL, AINR - Left and Right Channel Analog Inputs, Pins 16, 9. Analog input connections for the left and right channels. Nominally ±3.75 volts for a full scale input. AOUTL, AOUTR - Left and Right Channel ...

Page 15

ZCEN - Zero Crossing Enable, Pin 1. This pin enables or disables the zero crossing detection and time-out function used during analog output level transitions. A high level on this pin enables the zero crossing detection function. A low level ...

Page 16

PACKAGE DIMENSIONS 16L SOIC (300 MIL BODY) PACKAGE DRAWING 1 b SEATING PLANE e DIM ∝ INCHES MIN MAX 0.093 0.104 0.004 0.012 0.013 0.020 ...

Page 17

Revision Date PP1 April 1991 Initial release PP2 December 1992 Update specifications PP3 February 1999 Update specifications PP4 Update specifications and bring into new template. July 2004 Add lead free part. F1 September 2005 Added “Lead Free” to Ordering Information ...

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