900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






Cirrus Logic

CS3308 Datasheet Preview

CS3308 Datasheet

8-Channel Analog Volume Control

No Preview Available !

www.DataSheet4U.com
CS3308
8-Channel Analog Volume Control
Features
 Complete Analog Volume Control
– 8 Independently Controllable Channels
– 3 Configurable Master Volume and Muting
Controls
 Wide Adjustable Volume Range
– -96 dB to +22 dB in ¼ dB Steps
 Low Distortion & Noise
– -112 dB THD+N
– 123 dB Dynamic Range
 Noise-Free Level Transitions
– Zero-Crossing Detection with
Programmable Time-Out
 Low Channel-to-Channel Crosstalk
– 120 dB Inter-Channel Isolation
 Comprehensive Serial Control Port
– Supports I²C® and SPITM Communication
– Independent Control of up to 128 Devices
on a Shared 2-Wire I²C or 3-Wire SPI
Control Bus
– Supports Individual and Grouped Control of
all CS3308 Devices on the I²C or SPI
Control Bus
 Standard Power Supply Voltages
– ±5 V Analog Supply
– +3.3 V Digital Supply
Description
The CS3308 is an 8-channel digitally controlled analog
volume control designed specifically for high-end audio
systems. It features a comprehensive I²C/SPI serial
control port for easy device and volume configuration.
The CS3308 includes arrays of well-matched resistors
and complementary low-noise active output stages. A
total adjustable range of 118 dB, in ¼ dB steps, is
spread evenly over 96 dB of attenuation and 22 dB of
gain.
The CS3308 implements configurable zero-crossing
detection to provide glitch-free volume-level changes.
The I²C/SPI control interface provides for easy system
integration of up to 128 CS3308 devices over a single 2-
wire I²C or 3-wire SPI bus, allowing many channels of
volume control with minimal system controller I/O re-
quirements. Devices may be controlled on an individual
and grouped basis, simplifying simultaneous configura-
tion of a group of channels across multiple devices,
while allowing discrete control over all channels on an
individual basis.
The device operates from ±5 V analog supplies and has
an input/output voltage range of ±3.65 V. The digital
control interface operates at +3.3 V.
The CS3308 is available in a 48-pin LQFP package in
Commercial grade (-10° to 70° C). The CS3308 Cus-
tomer Demonstration board is also available for device
evaluation. Refer to “Ordering Information” on page 44
for complete details.
8-Channel
Analog
Inputs
I²C/SPI
Serial
Control
±5 V
8
+3.3 V
I²C / SPI
Control
Port
Zero Crossing
Detector
+
_
8-Channel
8 Analog
Outputs
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2006
(All Rights Reserved)
DECEMBER '06
DS702F1




Cirrus Logic

CS3308 Datasheet Preview

CS3308 Datasheet

8-Channel Analog Volume Control

No Preview Available !

CS3308
TABLE OF CONTENTS
1. PIN DESCRIPTIONS ............................................................................................................................ 5
2. CHARACTERISTICS AND SPECIFICATIONS .................................................................................... 7
SPECIFIED OPERATING CONDITIONS .................................................................................................... 7
ABSOLUTE MAXIMUM RATINGS............................................................................................................... 7
ANALOG CHARACTERISTICS ................................................................................................................... 8
DIGITAL INTERFACE CHARACTERISTICS............................................................................................... 9
MUTE SWITCHING CHARACTERISTICS .................................................................................................. 9
CONTROL PORT SWITCHING CHARACTERISTICS - I²C FORMAT...................................................... 10
CONTROL PORT SWITCHING CHARACTERISTICS - SPI™ FORMAT ................................................. 11
3. TYPICAL CONNECTION DIAGRAM ................................................................................................. 12
4. DETAILED BLOCK DIAGRAM .......................................................................................................... 13
5. APPLICATIONS ................................................................................................................................. 14
5.1 General Description ..................................................................................................................... 14
5.2 System Design ............................................................................................................................ 14
5.2.1 Analog Inputs .................................................................................................................... 14
5.2.2 Analog Outputs .................................................................................................................. 15
5.2.3 Recommended Layout, Grounding, and Power Supply Decoupling ................................. 15
5.3 Power-Up and Power-Down ........................................................................................................ 15
5.3.1 Recommended Power-Up Sequence ................................................................................ 16
5.3.2 Recommended Power-Down Sequence ........................................................................... 16
5.4 Volume & Muting Control Architecture ........................................................................................ 17
5.4.1 Control Mapping Matrix ..................................................................................................... 17
5.4.2 Volume & Muting Control Implementation ......................................................................... 18
5.5 Volume Controls .......................................................................................................................... 19
5.5.1 Individual Channel Volume Controls ................................................................................. 19
5.5.2 Master Volume Controls .................................................................................................... 19
5.5.3 Volume Limits .................................................................................................................... 20
5.6 Muting Controls ........................................................................................................................... 21
5.6.1 Individual Channel Mute Controls ..................................................................................... 21
5.6.2 Master Mute Controls ........................................................................................................ 21
5.6.3 Hardware Mute Control ..................................................................................................... 21
5.7 Zero-Crossing Detection .............................................................................................................. 22
5.7.1 Zero-Crossing Modes ........................................................................................................ 22
5.7.2 Zero-Crossing Time-Out .................................................................................................... 22
5.8 System Serial Control Configuration ........................................................................................... 23
5.8.1 Serial Control within a Single-CS3308 System ................................................................. 23
5.8.2 Serial Control within a Multiple-CS3308 System ............................................................... 24
5.8.2.1 SPI Mode Serial Control Configuration .......................................................................................... 24
5.8.2.2 I²C Mode Control Configuration ..................................................................................................... 26
5.9 I²C/SPI Serial Control Formats .................................................................................................... 27
5.9.1 I²C Mode ............................................................................................................................ 27
5.9.2 SPI Mode ........................................................................................................................... 28
6. CS3308 REGISTER QUICK REFERENCE ........................................................................................ 29
7. CS3308 REGISTER DESCRIPTIONS ................................................................................................ 31
7.1 Ch 1-8 Volume - Addresses 01h - 08h ........................................................................................ 31
7.1.1 Volume Control (Bits 7:0) .................................................................................................. 31
7.2 ¼ dB Control - Address 09h ........................................................................................................ 32
7.2.1 ¼ dB Control (Bit 0 - 7) ...................................................................................................... 32
7.3 Mute Control - Address 0Ah ........................................................................................................ 33
7.3.1 Mute Channel X (Bit 0 - 7) ................................................................................................. 33
7.4 Device Configuration 1 - Address 0Bh (Bit 5) .............................................................................. 33
7.4.1 Enable MUTE Input (Bit 5) ................................................................................................ 33
2 DS702F1


Part Number CS3308
Description 8-Channel Analog Volume Control
Maker Cirrus Logic
PDF Download

CS3308 Datasheet PDF






Similar Datasheet

1 CS330 High-Current Relays
Coto
2 CS3301 Differential Amplifier
Cirrus Logic
3 CS3301A Differential Amplifier
Cirrus Logic
4 CS3302 HIGH-Z PROGRAMMABLE GAIN DIFFERENTIAL AMPLIFIER
Cirrus Logic
5 CS3302A Differential Amplifier
Cirrus Logic
6 CS3308 8-Channel Analog Volume Control
Cirrus Logic





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy