CRD4525-Q1 Cirrus Logic Inc, CRD4525-Q1 Datasheet - Page 9

• Manufacturer Part Number: CRD4525-Q1
• Description: REFERENCE BOARD FOR CS4525 PWM
• Manufacturer: Cirrus Logic Inc
• Series: Popguard®r

Specifications of CRD4525-Q1

• Amplifier Type: Class D
• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 15W x 2 @ 8 Ohm
• Voltage - Supply: 12 V ~ 18 V
• Operating Temperature: 0°C ~ 70°C
• Board Type: Fully Populated
• Utilized Ic / Part: CS4525
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1586

DS726PP3
LVD
DGND
VD_REG
VD
VA_REG
AGND
FILT+
VQ
AFILTL
AFILTR
AINL
AINR
OCREF
PGND
RAMP_CAP
VP
OUT4
OUT3
OUT2
OUT1
PWM_SIG2
PWM_SIG1
DLY_SDOUT
DLY_SDIN/
EX_TWR
AUX_SDOUT
AUX_SCLK
AUX_LRCK/
AD0
SYS_CLK
XTO
XTI
Thermal Pad
25,30,
22,23
27,28
33,34
37,38
31,36
10
11
12
13
14
15
16
17
18
19
20
21
24
26
29
32
35
39
40
41
42
43
44
45
46
47
48
9
-
VD Voltage Level Indicator (Input) - Identifies the voltage level attached to VD. When applying
5.0 V to VD, LVD must be connected to VD. When applying 2.5 V or 3.3 V to VD, LVD must be
DGND.
Digital Ground (Input) - Ground for the internal logic and digital I/O.
Core Logic Power (Output) - Internally generated low voltage power supply for digital logic.
Power (Input) - Positive power supply for the internal regulators and digital I/O.
Analog Power (Output) - Internally generated positive power for the analog section and I/O.
Analog Ground (Input) - Ground reference for the internal analog section and I/O.
Positive Voltage Reference (Output) - Positive reference voltage for the internal ADC sampling
circuits.
Common Mode Voltage (Output) - Filter connection for internal common mode voltage.
Antialias Filter Connection (Output) - Antialias filter connection for ADC inputs.
Analog Input (Input) - The full-scale input level is specified in the ADC Analog Characteristics
specification table.
Over Current Reference Setting (Input) - Sets the reference for over current detection.
Power Ground (Input) - Ground for the individual output power half-bridge devices.
Output Ramp Capacitor (Input) - Used by the PWM Popguard Transient Control to suppress the
initial pop in half-bridge-configured outputs.
High Voltage Power (Input) - High voltage power supply for the individual half-bridge devices.
PWM Output (Output) - Amplified PWM power outputs.
Logic Level PWM Output (Output) - Logic Level PWM switching signals.
Delay Serial Audio Data Out (Output) - Output for two’s complement serial audio data.
Delay Serial Audio Data Input (Input) - Input for two’s complement serial audio data.
External Thermal Warning (Input) - Input for an external thermal warning signal. Configurable via
the I²C control port.
Auxiliary Port Serial Audio Data Out (Output) - Output for two’s complement auxiliary port serial
data.
Auxiliary Port Serial Clock (Output) - Serial clock for the auxiliary port serial interface.
Auxiliary Port Left Right Clock (Output) - Determines which channel, Left or Right, is currently
active on the serial audio data line.
AD0 (Input) - Sets the LSB of the I²C device address. Sensed on the release of RST.
System Clock (Input/Output) -Clock source for the internal logic, processing, and modulators. This
pin should be connected to through a 10kΩ to ground when unused.
Crystal Oscillator Output (Output) - Crystal oscillator driver output.
Crystal Oscillator Input (Input) - Crystal oscillator driver input.
Thermal Pad - Thermal relief pad for optimized heat dissipation. See
page 65
for more information.
“QFN Thermal Pad” on
CS4525
9