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X9460 Datasheet, PDF (1/16 Pages) Intersil Corporation – Dual Audio Control Digitally Controlled Potentiometer
X9460
®
Low Noise, Low Cost, High End Features, Dual Audio Log Potentiometer
Data Sheet
October 17, 2005
FN8203.2
Dual Audio Control Digitally Controlled
Potentiometer (XDCP™)
The X9460 integrates two digitally controlled potentiometer
(XDCP) on a monolithic CMOS integrated circuit. The two
XDCPs can be used as stereo gain controls in audio
applications. Read/Write operations can directly access
each channel independently or both channels
simultaneously. Increment/Decrement can adjust each
channel independently or both channels simultaneously.
The X9460 contains a zero amplitude wiper switching circuit
that delays wiper changes until the next zero crossing of the
audio signal.
The digitally controlled potentiometer is implemented using
31 polysilicon resistors in a log array. Between each of the
resistors are tap points connected to the wiper terminal
through switches. The XDCPs are designed to minimize
wiper noise to avoid pops and clicks during audio volume
transitions. The position of the wiper on the array is
controlled by the user through the 2-wire serial bus interface.
Power-up reset the wiper to the mute position.
Pinout
X9460
(14 LD TSSOP)
TOP VIEW
SDA
SCL
VCC
V+
VSS
A0
A1
1
14
2
13
3
12
4 X9460 11
5
10
6
9
7
8
V-
RH-right
RL-right
RW-right
RH-left
RL-left
RW-left
Features
• Dual Audio Control – Two 32 Taps Log Pots
• Zero Amplitude Wiper Switching
• 2-Wire Serial Interface
4 Slave Byte Addresses for Writes[A1,A0]
• Total Resistance: 33kΩ Each XDCP (Typical)
• Dual Voltage Operation
V+/V- = ±2.7 to ±5.5V
• Temp Range = -40°C to +85°C
• Package Options
14 L d TSSOP
• Zero Amplitude Wiper Switching
• Pb-Free Plus Anneal Available (RoHS Compliant)
Audio Performance
• 0 to - 62dB Volume Control
• -92dB Mute
- Power-Up to Mute Position
• SNR -96dB
• THD+N: -95dB @1kHz
• Crosstalk Rejection: -102dB @ 1kHz
• Channel-to-Channel Variation: ± 0.1dB
• 3dB-Cutoff: 100kHz
Applications
• Set Top Boxes
• Stereo Amplifiers
• DVD Players
• Portable Audio Products
Ordering Information
PART NUMBER
X9460KV14I*
X9460KV14IZ* (Note)
X9460KV14I-2.7*
PART MARKING
X9460KV I
X9460KV Z I
X9460KV G
VCC LIMITS (V)
5V ± 10%
2.7 to 5.5
TEMP RANGE (°C)
-40 to +85
-40 to +85
-40 to +85
PACKAGE
14 Ld TSSOP
14 Ld TSSOP (Pb-free)
14 Ld TSSOP
X9460KV14IZ-2.7* (Note) X9460KV Z G
-40 to +85
14 Ld TSSOP (Pb-free)
*Add "T1" suffix for tape and reel.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.