ISL22102 Datasheet, PDF (3/11 Pages) Intersil Corporation – 32 Tap, Push-button, Dual Audio Logarithmic Potentiometer with Buffer Amplifiers and Audio Detection

Pinouts
ISL22102
(20 LD QFN)
TOP VIEW
ISL22102
20 19 18 17 16
DN 1
MUTE 2
VCC 3
AVCC 4
LEFT_IN 5
15 D0
14 V_TH
13 GND
12 HPB
11 HPA
6 7 8 9 10
ISL22102
(20 LD TSSOP)
TOP VIEW
FLAG 1
SB 2
UP 3
DN 4
MUTE 5
VCC 6
AVCC 7
LEFT_IN 8
LEFT_OUT 9
CB 10
20 D2
19 D1
18 D0
17 V_TH
16 GND
15 HPB
14 HPA
13 RIGHT_IN
12 RIGHT_OUT
11 VB
Pin Description
PIN
(QFN)
PIN
(TSSOP)
SYMBOL
FUNCTION
1
4
DN
Active low volume decrement input with internal pull-up.
2
5
MUTE
Active low mute input with internal pull-up.
3
6
VCC
Digital Power Supply.
4
7
AVCC
Analog Power Supply.
5
8
LEFT_IN
Input terminal of the Left Channel Potentiometer. Referenced to VB.
6
9
LEFT_OUT Left channel output. Referenced to VB.
7
10
CB
Terminal for external bypass capacitor to GND.
8
11
VB
AVCC/2 reference output. Can be used as a signal reference for other system components.
9
12
RIGHT_OUT Right channel output. Referenced to VB.
10
13
RIGHT_IN Input terminal of the Right Channel Potentiometer. Referenced to VB.
11
14
HPA
Terminal A of audio-detector high pass filter capacitor.
12
15
HPB
Terminal B of audio-detector high pass filter capacitor.
13
16
GND
System Ground. Overall for analog and digital power supply.
14
17
V_TH
Analog Input threshold for audio detection. Require an external resistor to VB.
15
18
D0
Programming bit (LSB) input for delayed FLAG low output.
16
19
D1
Programming bit input for delayed FLAG low output.
17
20
D2
Programming bit (MSB) input for delayed FLAG low output.
18
1
FLAG
Output signal indicates audio input detection.
19
2
SB
Active low Standby Mode input with internal pull-up.
20
3
UP
Active low volume increment input with internal pull-up.
EPAD*
Exposed Die Pad internally connected to GND
*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
FN6788.1
January 14, 2010