DDX-2102 Datasheet, PDF (8/17 Pages) List of Unclassifed Manufacturers – All-Digital High Efficiency Power Amplifier

DDX-2102
Stereo Mode - Output Power vs Supply Voltage, <1% THD+N
90
80
6Ω
70
4Ω
60
8Ω
50
40
30
20
10
0
9
12
15
LEGEND:
Iout(min) = 3.5A
Iout(typ) = 6A
18
21
24
27
30
Power Supply Voltage (VDC)
R_L = 8Ω
R_L = 8Ω
R_L = 6Ω
R_L = 6Ω
33
36
R_L = 4Ω
R_L = 4Ω
Figure 6. Output Power vs. Supply Voltage for Stereo Bridge.
Figure 6 shows the full-scale output power (0dB FS digital input with unity amplifier gain) as a function
of Power Supply Voltage for 4, 6, and 8 Ohm loads in either DDX^® Mode or Binary Full Bridge Mode.
Output power is constrained for higher impedance loads by the maximum voltage limit of the DDX-2102
IC and by the over-current protection limit for lower impedance loads. The minimum threshold for the
over-current protection circuit is 3.5A (at 25 ºC) but the typical threshold is 6A. Solid curves depict
typical output power capability of each device. Dotted curves depict the output power capability
constrained to the minimum current specification of the DDX-2102. The output power curves assume
proper thermal management of the power device’s internal dissipation. See Figure 5.
NOTE: Output power at 10% THD is approximately 30% higher.
Specifications are subject to change without notice.
129 Morgan Drive, Norwood, MA 02062
voice: [phone]
fax: [phone]
CONTROLLED DOCUMENT: P_903-000055_Rev08 DDX-2102 Data Sheet.doc
email: [e-mail]
DRN: PRELIMINARY Page 8 of 17