CDB35L00 Cirrus Logic Inc, CDB35L00 Datasheet - Page 4

• Manufacturer Part Number: CDB35L00
• Description: DEVELOPMENT BOARD FOR CS35L0X
• Manufacturer: Cirrus Logic Inc

Specifications of CDB35L00

• Amplifier Type: Class D
• Output Type: 4-Channel (Quad)
• Max Output Power X Channels @ Load: 2.7W x 4 @ 4 Ohm
• Voltage - Supply: 2.5 V ~ 5.5 V
• Board Type: Fully Populated
• Utilized Ic / Part: CS35L0X
• Description/function: Audio Amplifiers
• Operating Supply Voltage: 2.5 V to 5.5 V
• Output Power: 1.6 W, 2.7 W
• Product: Audio Modules
• For Use With/related Products: CS35L00
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Operating Temperature: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1803

4
1.4
Shutdown Control
The S1 switch implements shutdown control for the four CS35L00 devices on the CDB35L00-X4. SD1-2
controls the shutdown for U1 and U2. SD3-4 controls the shutdown for U3 and U4 as shown in
on the schematic in
1.3.1.1
Each CS35L00 device has a hybrid control resistor. When
the hybrid control resistor for each CS35L00 is populated,
it connects the LFILT+ pin to VBATT and enables the
Standard Class-D functionality (SD or FSD modes) for the
corresponding device. When the hybrid control resistor
for each CS35L00 is not populated, LFILT+ is floating,
and the Hybrid Class-D functionality (HD or FHD modes)
is enabled.
The hybrid control resistors (R13, R23, R33, R43) are lo-
cated on the bottom side of the board adjacent to the
LFILT+ decoupling capacitor and are highlighted in blue
in
A combination of the hybrid control resistors and the S1
MODE switch allow the CS35L00 devices (U1-U4) on the
CDB35L00-X4 board to be configured in all 4 of the oper-
ational modes. There is no requirement to have the all
four of the CS35L00 devices configured in the same
mode. Each device can be configured to the user’s re-
quirements.
able using the hybrid control resistors and the S1 MODE
switch.
Figure
1.
Hybrid Control Resistor Configuration
Table 2
Table 2. Hybrid Control Resistor & S1 Switch MODE Configurations
Figure 4 on page
lists the configuration options avail-
R13: Removed
R23: Removed
R33: Removed
R43: Removed
R13: VBATT
R23: VBATT
R33: VBATT
R43: VBATT
9.
U1 = FSD
U1 = FHD
U2 = FSD
U2 = FHD
U3 = FSD
U3 = FHD
U4 = FSD
U4 = FHD
GND
S1 MODE Switch:
Figure 1. Hybrid Control Resistors
U1 = SD
U1 = HD
U2 = SD
U2 = HD
U3 = SD
U3 = HD
U4 = SD
U4 = HD
VBATT
CDB35L00-X4
DS913DB2
Table 3
and