Apogee DDX-1080 매뉴얼 - 페이지 7

{카테고리_이름} Apogee DDX-1080에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Apogee DDX-1080 14 페이지. All-digital high efficiency power amplifiers

Full Bridge Mode - Output Power vs Supply Voltage, THD+N<1%

100

LEGEND:

DDX-1050, Iout(min) = 3.5A

DDX-1060, Iout(min) = 4.0A

DDX-1080, Iout(min) = 4.5A

All devices, Iout(typ)

Figure 5 shows the full-scale output power (0 dB FS digital input with unity amplifier gain) as a function

of Power Supply Voltage for 4, 6, and 8 Ohm loads in either DDX

Output power is constrained for higher impedance loads by the maximum voltage limit of the

DDX-1080, DDX-1060 and DDX-1050 ICs and by the over-current protection limit for lower impedance

loads. The minimum threshold for the over-current protection circuit is 4.5/4.0/3.5A (at 25 ºC) but the

typical threshold is 6A. Solid curves depict typical output power capability of each device. Dotted and

dashed curves depict the output power capability constrained to the minimum current specification of

the DDX-1050, DDX-1060 and DDX-1080 respectively.

thermal management of the power device's internal dissipation. See Figure 4.

NOTE: Output power at 10% THD is approximately 30% higher.

129 Morgan Drive, Norwood, MA 02062

CONTROLLED DOCUMENT: P_903-000044_Rev08 DDX-1080_60_50 Data Sheet.doc

= 6A

Figure 5 - Full Bridge Output Power vs. Supply Voltage, <1% THD.

Specifications are subject to change without notice.

voice: (781) 551-9450

DDX-1080/DDX-1060/DDX-1050

4Ω

Power Supply Voltage (VDC)

= 8Ω

The output power curves assume proper

fax: (781) 440-9528

8Ω

6Ω

= 6Ω

Mode or Binary Full Bridge Mode.

DRN: PRELIMINARY

= 4Ω

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