|
|
|
MAX4908, MAX4909, MAX4930, MAX4932
Dual 3:1 Clickless Audio Multiplexers with Negative-Signal Handling
Passes Negative Signals Up to VCC - 5.5V with Only 1 Positive Power Supply
|
Status
Active: In Production.
Description
The MAX4908/MAX4909/MAX4930/MAX4932 dual 3:1
clickless audio multiplexers feature negative-signal
capability that allows signals as low as VCC - 5.5V to
pass through without distortion. These analog multiplexers
have a low on-resistance (0.38Ω), low supply current,
and operate from a single +1.8V to +5.5V supply.
The MAX4908 has shunt resistors on all input terminals,
and the MAX4909 has shunt resistors on all input terminals
except X0 and Y0. The MAX4930 has shunt resistors
only on the X2 and Y2 terminals, and the MAX4932 has
no shunt resistors. The shunt resistor feature reduces
click-and-pop sounds by automatically discharging the
capacitance at the input terminal when they are not connected.
A break-before-make feature further reduces
popping.
The MAX4908/MAX4909/MAX4930/MAX4932 use two
digital control inputs CB1 and CB2 to switch between signals.
The digital control inputs can accept up to +5.5V
independent of the supply voltage.
The MAX4908/MAX4909/MAX4930/MAX4932 are available
in 12-bump WLP and 14-pin TDFN-EP packages
and operate over the -40°C to +85°C extended temperature
range.
|
|
Data Sheet
|
Key Features
- Distortion-Free Negative Signal Throughput Down to VCC - 5.5V
- Internal Shunt Resistors Reduce Click-and-Pop Sounds
- High PSRR Reduces Supply Noise
- Low On-Resistance: 0.38Ω (typ)
- Channel-to-Channel Matching: 0.1Ω (max)
- On-Resistance Flatness: 0.35Ω (max)
- Single +1.8V to +5.5V Supply Voltage
- -70dB (typ) Crosstalk (20kHz)
- -80dB (typ) Off-Isolation (20kHz)
- 0.02% (typ) Total Harmonic Distortion
- 50nA Leakage Current
- 50nA Supply Current
|
|
Applications/Uses
- Cell Phones
- MP3 Players
- Notebook Computers
- PDAs and Handheld Devices
|
|
|
|
Key Specifications:
| Switches and Multiplexers (Low Voltage) |
| Part Number |
Config. |
Channels |
VSUPPLY (Single)
(V) |
VSUPPLY (Single)
(V) |
VSIGNAL
(V) |
VSIGNAL
(V) |
Dynamic Range (max)
(V) |
RON
(Ω) |
RFLAT(ON) |
IL(OFF)
(nA) |
CON
(pF) |
COFF
(pF) |
Budgetary Price |
| min |
max |
min |
max |
max |
max |
typ |
max |
max |
max |
See Notes |
| MAX4908 |
3:1 |
2 |
1.8 |
5.5 |
-3.7 |
5.5 |
5.5 |
0.8 |
0.35 |
- |
450 |
200 |
$1.62 @1k |
| MAX4909 |
50 |
$1.20 @1k |
| MAX4930 |
50 |
- |
| MAX4932 |
50 |
$1.20 @1k |
|
See All Switches and Multiplexers (Low Voltage) (186)
|
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|
|
Diagram
 Typical Operating Circuit
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-3958
Rev 2;
2008-10-02
This page last modified: 2011-10-19
|
|
|
Download
E-Mail