d2-45057 Intersil Corporation, d2-45057 Datasheet - Page 11

• Manufacturer Part Number: d2-45057
• Description: Intelligent Digital Amplifier Pwm Controller And Audio Processor
• Manufacturer: Intersil Corporation

Pin Description
PIN
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
(Note 13) TYPE
PROTECT0
PROTECT1
PROTECT2
nERROR0
nERROR1
nERROR2
nERROR3
nERROR/
PSSYNC/
SUBOUT
HGNDD
HVDDD
HGNDC
HVDDC
HSBSD
HSBSC
NAME
OUTD
OUTC
CFG0
CFG1
DNC
PIN
GND
GND
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
P
P
I
I
-
VOLTAGE
LEVEL
11
(V)
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
HV
HV
HV
HV
HV
HV
HV
HV
-
(Continued)
Output configuration selection input, and nERROR output. Upon device reset, pin operates
as input, using application-installed pull-up or pull-down connection to pin to specify one of
4 amplifier configurations. Upon internal D2-45057, D2-45157 firmware execution, pin
becomes output, providing active-low output drive when amplifier protection monitoring
detects an error condition. When operating as output, provides 4mA drive strength. (Note:
This pin may also be referenced as “PSCURR” on some reference designs. Function is
identical regardless of name.)
Output configuration selection input, and power supply sync output. Upon device reset, pin
operates as input, using application-installed pull-up or pull-down connection to pin to
specify one of 4 amplifier configurations. Upon internal D2-45057, D2-45157 firmware
execution, pin becomes output, providing synchronizing signal to on-board power supply
circuits. When operating as output, provides 4mA drive strength. Note: This pin may also
be referenced as “PSTEMP” on some reference designs. Function is identical regardless of
name.
PWM protection input. Input has hysteresis. Protection monitoring functionality of pin is
controlled by internal D2-45057, D2-45157 firmware, and dependent on which of the 4
amplifier configurations is enabled.
PWM protection input. Input has hysteresis. Protection monitoring functionality of pin is
controlled by internal D2-45057, D2-45157 firmware, and dependent on which of the 4
amplifier configurations is enabled.
PWM protection input. Input has hysteresis. Protection monitoring functionality of pin is
controlled by internal D2-45057, D2-45157 firmware, and dependent on which of the 4
amplifier configurations is enabled.
Overcurrent protection output, channel A output stage. Open drain 16mA driver, with internal
100kΩ (approx.) pull-up. Pulls low when active from overcurrent detection of output stage.
Overcurrent protection output, channel B output stage. Open drain 16mA driver, with internal
100kΩ (approx.) pull-up. Pulls low when active from overcurrent detection of output stage.
Overcurrent protection output, channel C output stage. Open drain 16mA driver, with internal
100kΩ (approx.) pull-up. Pulls low when active from overcurrent detection of output stage.
Overcurrent protection output, channel D output stage. Open drain 16mA driver, with internal
100kΩ (approx.) pull-up. Pulls low when active from overcurrent detection of output stage.
Output stage D high voltage supply power. A separate power pin connection is provided for
each of the output stages. All of the HVDD[A:D] pins and the VDDHV pin connect to the
system “HV” power source.
Output stage D high voltage supply ground. A separate ground pin connection is provided
for each of the output stages. All of the HGND[A:D] pins connect to system “HV” power
ground (also see Note 15).
PWM power amplifier output, channel D.
High-side boot strap input, output channel D. Capacitor couples to OUTD amplifier output.
High-side boot strap input, output channel C. Capacitor couples to OUTC amplifier output.
PWM power amplifier output, channel C.
Output stage C high voltage supply ground. A separate ground pin connection is provided
for each of the output stages. All of the HGND[A:D] pins connect to system “HV” power
ground (also see Note 15).
Output stage C high voltage supply power. A separate power pin connection is provided for
each of the output stages. All of the HVDD[A:D] pins and the VDDHV pin connect to the
system “HV” power source.
“Subwoofer” channel PWM output, with 16mA drive strength. Connects to filter network for
supplying line-level analog output to subwoofer.
Do not connect to this pin.
D2-45057, D2-45157
DESCRIPTION
July 29, 2010
FN6785.0