cs4412 Cirrus Logic, Inc., cs4412 Datasheet - Page 14

• Manufacturer Part Number: cs4412
• Description: 30 W Quad Half-bridge Digital Amplifier Power Stage Logic
• Manufacturer: Cirrus Logic, Inc.

14
4.2.3
4.3
Output Mode Configuration
The CS4412 can be configured for several modes of operation.
inputs and the corresponding mode of operation. These pins should remain static during operation (RSTx/y
set high).
CNFG2 CNFG1 CNFG0 Output Config.
1. Mute the logic-level PWM inputs present on IN1 - IN4 by applying 50 % duty-cycle inputs.
2. Set RSTx/y low. If the CS4412 is configured for ramping, the outputs will ramp down to PGND and
3. Power down the remainder of the system.
4. Turn off the system power.
Recommended Power-Down Sequence
0
0
0
0
1
1
1
1
then become HI-Z. If the CS4412 is not configured for ramping, the outputs will immediately become
HI-Z.
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
& Mono Full-Bridge
Mono Parallel Full-
Mono Parallel Full-
Stereo Half-Bridge
Stereo Half-Bridge
Stereo Full-Bridge
Bridge Tied Loads
Stereo Full-Bridge
Quad Half-Bridge
Quad Half-Bridge
Bridge Tied Load
Bridge Tied Load
and Mono Full-
With Inversion
With Inversion
With Inversion
Tied Loads
Tied Loads
Tied Loads
Tied Loads
Tied Loads
Table 2. Output Mode Configuration Options
IN1 must be inverted from IN2 for full-bridge operation.
IN3 must be inverted from IN4 for full-bridge operation.
IN1 must be provided for half-bridge operation.
IN2 must be provided for half-bridge operation.
IN3 must be inverted from IN4 for full-bridge operation.
IN1 and IN3 must be inverted from IN2 and IN4 for parallel full-
bridge operation.
IN1 must be provided for half-bridge operation.
IN2 must be provided for half-bridge operation.
IN3 must be provided for half-bridge operation.
IN4 must be provided for half-bridge operation.
IN1 must be provided for full-bridge operation.
Wire IN2 to IN1. IN2 is internally inverted for full-bridge operation.
IN3 must be provided for full-bridge operation.
Wire IN4 to IN3. IN4 is internally inverted for full-bridge operation.
IN1 must be provided for half-bridge operation.
IN2 must be provided for half-bridge operation.
IN3 must be provided for full-bridge operation.
Wire IN4 to IN3. IN4 is internally inverted for full-bridge operation.
IN1 must be provided for parallel full-bridge operation.
Wire IN4, IN3, and IN2 to IN1.
IN2 and IN4 are internally inverted for parallel full-bridge operation.
IN1 must be provided for half-bridge operation.
IN2 must be provided for half-bridge operation.
IN3 must be provided for half-bridge operation.
IN4 must be provided for half-bridge operation.
Table 2
Description
shows the setting of the CNFG[2:0]
CS4412
DS749A1