ISD8104
ISD8104 is Audio Amplifier manufactured by Nuvoton Technology.
DESCRIPTION
ISD8104 is a general purpose analog audio amplifier, capable of driving a 4Ω load with up to 2Wrms output power. This device includes output current limiting, chip enable, low standby current and excellent pop-and-click suppression.
Also included is the ability to configure the input as differential. Internal resistors set the device to have default 20d B gain, and with external resistors any gain less than this can be achieved. The device is unity gain stable, including use with external feedback resistors and external capacitors as may be optionally used for implementing simple filtering functions.
ISD8104: The ISD8104 has differential inputs VIP & VIN which can be configured to accept either single ended or differential signals. CE pin controls the general chip function.
May 21, 2024
Page 2 of 16
Rev 1.2
2 FEATURES
- Wide power supply range and excellent standby current o 2.0Vdc
- 5.5Vdc operation o <1u A standby current
- High output power (cap-less BTL configuration) o Up to 2W output into 4Ω load (<10% distortion) with 5.5Vdc supply voltage o < 0.1% distortion at 600m W 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 > 75d B mon mode rejection in differential mode o > 70d B power supply noise rejection
- Very fast start-up time o Less than 1msec when using Chip Enable
- Current limiting for over-current conditions
- Package options:
- DIE, SOP-8 (thermal pad)
- Less BOM cost / Easy PCB layout
- Temperature Range: -40°C ~ +85°C
- Package is Halogen-free, Ro HS-pliant and TSCA-pliant
Applications:
- Toys
- Feature
Phones
- Portable Game Consoles
- GPS
- Portable Speakers
- Boom Box
- White Goods
May 21, 2024
Page 3 of 16
Rev 1.2
3 BLOCK DIAGRAM
3.1 ISD8104 WITH DIFFERENTIAL INPUTS
Figure 3-2 ISD8104 Differential Input Pair Block Diagram
May 21, 2024
Page 4 of 16
Rev 1.2
4 PINOUT CONFIGURATION: SOP-...