TDA8922CTH/N1,118 NXP Semiconductors, TDA8922CTH/N1,118 Datasheet - Page 5

• Manufacturer Part Number: TDA8922CTH/N1,118
• Description: IC AMP AUDIO CLASS D 24HSOP
• Manufacturer: NXP Semiconductors
• Type: Class Dr

Specifications of TDA8922CTH/N1,118

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 155W x 1 @ 8 Ohm; 75W x 2 @ 6 Ohm
• Voltage - Supply: ±12.5 V ~ 32.5 V
• Features: Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Surface Mount
• Package / Case: 24-HSOP
• Operational Class: Class-D
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.02@8Ohm@1W%
• Single Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Dual
• Rail/rail I/o Type: No
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): ±12.5V
• Mounting: Surface Mount
• Pin Count: 24
• Package Type: HSOP
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free by exemption / RoHS compliant by exemption
• Other names: 935286885118

NXP Semiconductors
8. Functional description
TDA8922C_1
Product data sheet
7.2 Pin description
8.1 General
Table 3.
The TDA8922C is a two-channel audio power amplifier that uses Class D technology.
For each channel, the audio input signal is converted into a digital Pulse Width Modulation
(PWM) signal using an analog input stage and a PWM modulator; see
the output power transistors, the digital PWM signal is fed to a control and handshake
block and to high- and low-side driver circuits. This level-shifts the low-power digital PWM
signal from a logic level to a high-power PWM signal switching between the main supply
lines.
A second order low-pass filter converts the PWM signal to an analog audio signal that can
be used to drive a loudspeaker.
Symbol
VSSA
SGND
VDDA
IN2M
IN2P
MODE
OSC
IN1P
IN1M
n.c.
n.c.
n.c.
PROT
VDDP1
BOOT1
OUT1
VSSP1
STABI
n.c.
VSSP2
OUT2
BOOT2
VDDP2
VSSD
Pin
TDA8922CTH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Pin description
Rev. 01 — 7 September 2009
TDA8922CJ
18
19
20
21
22
23
1
2
3
4
5
6
7
8
9
10
11
12
-
13
14
15
16
17
Description
negative analog supply voltage
signal ground
positive analog supply voltage
channel 2 negative audio input
channel 2 positive audio input
mode selection input: Standby, Mute or Operating
mode
oscillator frequency adjustment or tracking input
channel 1 positive audio input
channel 1 negative audio input
not connected
not connected
not connected
decoupling capacitor for protection (OCP)
channel 1 positive power supply voltage
channel 1 bootstrap capacitor
channel 1 PWM output
channel 1 negative power supply voltage
decoupling of internal stabilizer for logic supply
not connected
channel 2 negative power supply voltage
channel 2 PWM output
channel 2 bootstrap capacitor
channel 2 positive power supply voltage
negative digital supply voltage
2
75 W class-D power amplifier
TDA8922C
Figure
© NXP B.V. 2009. All rights reserved.
1. To drive
5 of 40