ISD8101
ISD8101 Datasheet Rev. 1.8 - 2 - Nov, 2012
1
GENERAL DESCRIPTION
The ISD8100 is a general purpose analog audio amplifier capable of driving an 8-ohm load with up to
1.5Wrms output power. This device includes current limiting and a chip enable pin with low standby
current and excellent pop-and-click performance.
Also included is the ability for the inputs to be configured as either single-ended or differential. Internal
resistors set the device gain at 20dB in the single ended output configuration. With external resistors,
any gain less than 20dB can be achieved. The device is unity gain stable, including when used with
external input resistors and external capacitors as may be optionally used for implementing simple
filtering functions.
2
FEATURES
• Wide power supply range and excellent
standby current
o 2.4Vdc - 6.8Vdc operation
<1uA standby current
• High output power (capless BTL
configuration)
o Up to 1.5-W output into 8-ohm load
(<10% distortion) with 6.8Vdc supply
voltage
o < 0.1% distortion at 500mW into 8-ohms
with 5Vdc supply voltage
• Excellent pop-and-click performance
o Low to inaudible pop/click using Chip
Enable
• Single-Ended or Differential signal inputs
o > 40dB common mode rejection in
differential mode
> 40dB power supply noise rejection
• Very fast start-up time
o Less than 1msec when using Chip
Enable
Applications:
• Toys
• Mobile Phones
• Current limiting for over-current conditions • Greeting Cards
• Package options: Pb-free SOP-8, SOP-8
(Ex-Pad), PDIP-8
• Portable Speakers
• Boom Box
• Temperature Range:
-40°C to +85°C
• White Goods
