Texas Instruments TA5704EVM 사용자 설명서
3.7
Switches
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Jumpers and Control Utilities
Table 6. TAS5704 Output Configuration
Jumper CFG2
Jumper CFG1
GAIN (dB)
Shunt IN = 0
Shunt IN = 0
2-Channel BTL Mode (AD Modulation). Connect speakers across OUTA/OUTB and
0
0
OUTC/OUTD.
2-Channel BTL Mode (BD Modulation). Connect speakers across OUTA/OUTB and
0
1
OUTC/OUTD.
2-Channel SE Mode AND 1-Channel BTL Mode (AD Modulation). Connect Left/Right
speakers across OUTA/Center terminal (+ side of speaker connected to OUTA) and
speakers across OUTA/Center terminal (+ side of speaker connected to OUTA) and
1
0
OUTB/Center terminal (+ side of speaker connected to Center terminal). Connect Subwoofer
across OUTC/D. Remove jumpers JP3 – JP6.
across OUTC/D. Remove jumpers JP3 – JP6.
4-Channel SE Mode (AD Modulation). Connect Speakers across OUTA/Center,
OUTB/Center and OUTC/Center, OUTD/Center. OUTB and OUTD are inverted
OUTB/Center and OUTC/Center, OUTD/Center. OUTB and OUTD are inverted
1
1
internally
…
.connect “+” side of speaker to center terminal (GND) so that OUTB and OUTD
will be in phase with OUTA and OUTC. Remove jumpers JP3 – JP6 and JP7 – JP10.
RESET is an active low function. Pressing master reset switch (S2) resets TAS5704 and DIR9001.
Releasing the switch will take the devices out of reset.
Releasing the switch will take the devices out of reset.
POWER DOWN function is an active low function. Pressing the power-down switch (S3) powers down
TAS5704 (outputs remain switching at 50% duty cycle). Releasing the switch will take the device out of
power down.
TAS5704 (outputs remain switching at 50% duty cycle). Releasing the switch will take the device out of
power down.
MUTE is an active low function. Pressing the mute switch (S4) mutes TAS5704. Releasing the switch will
take the device out of mute.
take the device out of mute.
SLOU224 – April 2008
TA5704EVM 4-Channel Digital Audio Power Amplifier with Hardware Control
13