ISL22102IR20Z Intersil, ISL22102IR20Z Datasheet

IC POT DUAL 32TAP 20-QFN

ISL22102IR20Z

Manufacturer Part Number
ISL22102IR20Z
Description
IC POT DUAL 32TAP 20-QFN
Manufacturer
Intersil
Series
XDCP™r
Datasheet

Specifications of ISL22102IR20Z

Taps
32
Resistance (ohms)
18.5K
Number Of Circuits
2
Temperature Coefficient
10 ppm/°C Typical
Memory Type
Volatile
Interface
Pushbutton
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-TQFN Exposed Pad
Resistance In Ohms
18.5K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL22102IR20Z
Manufacturer:
Intersil
Quantity:
50
Part Number:
ISL22102IR20Z-TK
Manufacturer:
INTERSIL
Quantity:
20 000
32 Tap, Push-button, Dual Audio
Logarithmic Potentiometer with Buffer
Amplifiers and Audio Detection
The ISL22102 integrates two digitally controlled
potentiometers (DCP) with buffered wiper outputs and an
internal bias voltage generator (VB) on a monolithic CMOS
integrated circuit. The wiper position is adjusted by the user
through simple Up and Down push buttons, ideal for stereo
volume control in audio applications.
Each potentiometer is implemented using 31 polysilicon
resistors in a logarithmic array. Between each of the
resistors are tap points connected to the wiper terminal
through switches. When powered up, the wipers are reset to
the -20dB position.
In addition to the ISL22102’s low noise design, the ISL22102
also contains a zero-crossing detection circuitry to further
minimize click and pop noise during volume transition.
The internal VB generator of the ISL22102 provides a
precision middle scale voltage reference that reduces
external circuitry and simplifies application design.
The ISL22102 implements two power saving techniques for
power critical applications. It is a Standby Mode that can be
enabled to reduce the power consumption of the part when
DCP is not in use. The part also has Audio Detection
circuitry that provides an indication FLAG to external devices
and services. The FLAG can be delayed through D0, D1 and
D2 pin configuration. By connecting the FLAG to the standby
pin (SB), it will automatically put the part into Standby Mode.
Pinout
LEFT_IN
MUTE
AVCC
VCC
DN
1
2
3
4
5
20
6
(20 LD QFN)
TOP VIEW
ISL22102
19
7
®
1
18
8
17
9
Data Sheet
16
10
Dual, Audio, Push-button Controlled Potentiometer (XDCP™)
15
14
13
12
11
D0
V
GND
HPB
HPA
TH
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2008, 2010. All Rights Reserved
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Dual Audio Control – Two 32 Taps Log Pots
• Buffered Wiper Outputs
• Audio Detection with Threshold Input and Controlled
• Zero Amplitude Wiper Switching (ZAWS)
• Simple Push-button Interface
• Auto Increment/decrement After 1s Button Press
• Standby Mode
• Mute Function
• Total Resistance: 18.5kΩ each DCP (Typical)
• Voltage Operation
• Temp Range = -40°C to +85°C
• Package Options
• Pb-Free (RoHS Compliant)
Audio Performance
• 0dB to -72dB Volume Control
• -90dB Mute
• SNR: -90dB
• THD+N: 0.01% @ 1kHz
• Crosstalk Rejection: -100dB @ 1kHz
• Channel-to-Channel Variation: ±0.1dB
• Mid point 3dB-Cutoff: 100kHz
Applications
• Set Top Boxes
• Stereo Amplifiers
• DVD Players
• Portable Audio Products
Delay
- VCC = 2.7V to 5.5V
- AVCC = 2.7V to 5.5V
- 20 Ld TSSOP
- 20 Ld QFN
January 14, 2010
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
ISL22102
FN6788.1

Related parts for ISL22102IR20Z

ISL22102IR20Z Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2008, 2010. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL22102 FN6788.1 | Intersil (and design registered trademark of Intersil Americas Inc ...

Page 2

... PART MARKING ISL22102IV20Z* 22102 IVZ ISL22102IR20Z* 221 02IRZ *Add “-TK” suffix for tape and reel. Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations) ...

Page 3

... EPAD* *Note: PCB thermal land for QFN/TDFN EPAD should be connected to GND plane or left floating. For more information refer to http://www.intersil.com/data/tb/TB389.pdf 3 ISL22102 GND 13 HPB 12 HPA Active low volume decrement input with internal pull-up. Active low mute input with internal pull-up. VCC Digital Power Supply. ...

Page 4

... Thermal Information Thermal Resistance (Typical) 20 Lead TSSOP (Note Lead QFN (Notes Maximum Junction Temperature (Plastic Package +150°C Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp Recommended Operating Conditions Temperature Range (Industrial -40°C to 85°C Supply Voltage ( 2.7V to 5.5V CC Analog Supply Voltage (AV Power Rating of each DCP ...

Page 5

Analog Specifications Over the recommended operating conditions unless otherwise specified. SYMBOL PARAMETER TC Temperature Coefficient of End-to-end R (Note 7) Resistance DC ELECTRICAL SPECIFICATION AVCC Analog Power Supply VCC Digital Power Supply t AVCC and VCC Ramp Rate R I ...

Page 6

AC Timing Over recommended operating conditions (Continued) SYMBOL t FLAG Delay Time Interval Step Size, from D2:D0 = 001b to 111b. FLAG_LOW FLAG is Asserted LOW when Audio Input is Below Threshold. (See Table 1, page 7) t Zero Amplitude ...

Page 7

Pin Descriptions LEFT_IN, RIGHT_IN The LEFT_IN and RIGHT_IN pins of the ISL22102 are equivalent to the fixed terminals of a mechanical potentiometer. The stereo audio signal applied to these pins are referenced to VB and may have ±AVCC/2 maximum amplitude. ...

Page 8

V TH This terminal allows to set up the threshold level of audio input to be detected. When audio input to either Left or Right channel is below this threshold - the FLAG output is Low; when audio input is ...

Page 9

TABLE 3. WIPER TAP POSITION vs ATTENUATION (Continued) TAP POSITION Typical Application Diagram 1µF *FLAG LOW OUTPUT DELAY IS 240s 9 ISL22102 Once an UP MUTE ...

Page 10

Package Outline Drawing L20.4x4C 20 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 0, 11/06 4.00 6 PIN 1 INDEX AREA 0.15 (4X) TOP VIEW ( 3. 8 TYP ) ( TYPICAL RECOMMENDED LAND PATTERN 10 ISL22102 16X ...

Page 11

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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