Sanyo LED-46XR10FH Service Manual page 26

4、 R2A15112FP
R2A15112FP is a Digital Power Amplifier IC developed for TV.
R2A15112FP has a maximum power of 15W(typ) × 2ch.(VD = 24V,THD = 1%, SE) at a 4 Ω load.
It is possible to replace a conventional analog amplifier with a digital amplifier easily.
Feature
Maximum power out put (No external heat sink)
(note) These apply when the thermal pad is soldered to the printed-circuit board directly.
Recommended Power Condition
SE operation mode :15Wx2ch(VD=24V,4Ω load,THD+N:1%）
BTL operation mode:30Wx1ch(VD=21V,8Ω load,THD+N:10%）
Highly efficient, low noise, and low distortion
Popless
Built-in protection - Overcurrent, overheat, and undervoltage
Built-in Mute and Standby function
The gain can be changed to four settings by two terminals.