CS43L22
Low Power, Stereo DAC w/Headphone & Speaker AmpsThe CS43L22 is a low power, stereo dac w/headphone & speaker amps from Cirrus Logic. View the full CS43L22 datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
Official CS43L22 datasheet (PDF) — the source this page was extracted from.
CS43L22 Key Specifications
| Parameter | Value |
|---|---|
| THD+N | 88 dB |
| Sample Rate | 4 kHz to 96 kHz |
| Dynamic Range | 98 dB (A-weighted) |
| Control Interface | I2C (slave address 1001010) |
| Class D Efficiency | 81% at 800 mW |
| Converter Resolution | 24-bit |
| Master Clock Support | 12, 24, 27 MHz plus typical audio clock rates |
| Operating Temperature | -40°C to +85°C |
| Stereo Playback Power | 14 mW @ 1.8V |
| Headphone Output Power | 2 x 23 mW into 16 Ω @ 1.8V; 2 x 44 mW into 16 Ω @ 2.5V |
| Speaker Output Power (Mono) | 1 x 1.90 W into 4 Ω @ 5.0V (10% THD+N) |
| Speaker Output Power (Stereo) | 2 x 1.00 W into 8 Ω @ 5.0V (10% THD+N) |
| Interface Logic Supply Voltage | 1.8V to 3.3V |
| Digital & Analog Supply Voltage | 1.8V to 2.5V |
| Stereo Analog Passthrough Power | 10 mW @ 1.8V |
| Class D Amplifier Supply Voltage | 1.6V to 5V |
| Headphone Amplifier Supply Voltage | 1.8V to 2.5V |
| Junction-To-Ambient Thermal Impedance | 44 °C/W (2-layer), 19 °C/W (4-layer) |
CS43L22 Overview
Part: CS43L22 — Cirrus Logic Type: Low Power, Stereo DAC w/Headphone & Speaker Amps Description: Highly integrated, low power stereo DAC with headphone and Class D speaker amplifiers, offering 98 dB dynamic range, 2 x 44 mW into 16 Ω headphone output, and 2 x 1.00 W into 8 Ω Class D speaker output.
Operating Conditions:
- Digital & Analog supply voltage: 1.8 V to 2.5 V
- Class D Amplifier supply voltage: 1.6 V to 5 V
- Headphone Amplifier supply voltage: 1.8 V to 2.5 V
- Interface Logic supply voltage: 1.8 V to 3.3 V
- Operating temperature: -40 to +85 °C
Absolute Maximum Ratings:
- Max junction/storage temperature: +150 °C
Key Specs:
- Dynamic Range (A-wtd): 98 dB
- THD+N: 88 dB
- Headphone Output Power (Stereo, 16 Ω @ 2.5V): 2 x 44 mW
- Speaker Output Power (Stereo, 8 Ω @ 5.0 V, 10% THD+N): 2 x 1.00 W
- Speaker Output Power (Mono, 4 Ω @ 5.0 V, 10% THD+N): 1 x 1.90 W
- Speaker Amplifier Efficiency (800 mW): 81%
- Stereo Analog Passthrough Power Consumption (@ 1.8 V): 10 mW
- Stereo Playback Power Consumption (@ 1.8 V): 14 mW
- Sample Rates: 4 kHz to 96 kHz
Features:
- Headphone Amplifier - GND Centered, no DC-Blocking Capacitors Required
- Integrated Negative Voltage Regulator
- Stereo Analog Input Passthrough Architecture with Mixing and Volume Control
- Digital Signal Processing Engine (Bass & Treble Tone Control, De-Emphasis, PCM Input w/Independent Vol Control, Master Digital Volume Control and Limiter, Soft-Ramp & Zero-Cross Transitions)
- Programmable Peak-Detect and Limiter
- Beep Generator w/Full Tone Control
- Class D Stereo/Mono Speaker Amplifier with no External Filter Required
- Direct Battery Powered Operation with Battery Level Monitoring & Compensation
- Spread Spectrum Modulation
- 24-bit Converters with Multi-bit Delta Sigma Architecture
- Flexible Clocking Options (Master or Slave Operation, Quarter-Speed Mode)
- I²C Control Port Operation
- Headphone/Speaker Detection Input
- Pop and Click Suppression
- Pin-Compatible w/CS42L52
Applications:
- PDA's
- Personal Media Players
- Portable Game Consoles
Package:
- 40-pin QFN
CS43L22 Features
- 98 dB Dynamic Range (A-wtd)
- 88 dB THD+N
- Headphone Amplifier - GND Centered
- -No DC-Blocking Capacitors Required
- -Integrated Negative Voltage Regulator
- -2 x 23 mW into Stereo 16 Ω @ 1.8 V
- -2 x 44 mW into Stereo 16 Ω @ 2.5V
- Stereo Analog Input Passthrough Architecture
- -Analog Input Mixing
- -Analog Passthrough with Volume Control
- Digital Signal Processing Engine
- -Bass & Treble Tone Control, De-Emphasis
- -PCM Input w/Independent Vol Control
- -Master Digital Volume Control and Limiter
- -Soft-Ramp & Zero-Cross Transitions
- Programmable Peak-Detect and Limiter
- Beep Generator w/Full Tone Control
- -Tone Selections Across Two Octaves
- -Separate Volume Control
- -Programmable On and Off Time Intervals
- -Continuous, Periodic, One-Shot Beep Selections
CS43L22 Applications
- PDA's
- Personal Media Players
- Portable Game Consoles
CS43L22 Pin Configuration
| Pin Name | # | Pin Description |
|---|---|---|
| SDA | 1 | Serial Control Data ( Input / Output ) - SDA is a data I/O in I²C Mode. |
| SCL | 2 | Serial Control Port Clock ( Input ) - Serial clock for the serial control port. |
| AD0 | 3 | Address Bit 0 (I²C) ( Input ) - AD0 is a chip address pin in I²C Mode; |
| SPKR_OUTA+ SPKR_OUTA- SPKR_OUTB+ SPKR_OUTB- | 4 6 7 9 | PWM Speaker Output ( Output ) - Full-bridge amplified PWM speaker outputs. |
| VP | 5 8 | Power for PWM Drivers ( Input ) - Power supply for the PWM output driver stages. |
| -VHPFILT | 10 | Inverting Charge Pump Filter Connection (Output) - Power supply from the inverting charge pump that provides the negative rail for the headphone/line amplifiers. |
| FLYN | 11 | Charge Pump Cap Negative Node (Output) - Negative node for the inverting charge pump's fly- ing capacitor. |
| FLYP | 12 | Charge Pump Cap Positive Node (Output) - Positive node for the inverting charge pump's flying capacitor. |
| +VHP | 13 | Positive Analog Power for Headphone ( Input ) - Positive voltage rail and power for the internal headphone amplifiers and inverting charge pump. |
| HP/LINE_OUTB, A | 14,15 | Headphone/Line Audio Output ( Output ) - Stereo headphone or line level analog outputs. |
| VA | 16 | Analog Power ( Input ) - Positive power for the internal analog section. |
Confidential Draft
10/7/08
Confidential Draft
10/7/08
| AGND | 17 | Analog Ground ( Input ) - Ground reference for the internal analog section. |
|---|---|---|
| FILT+ | 18 | Positive Voltage Reference (Output) - Filter connection for the internal sampling circuits. |
| VQ | 19 | Quiescent Voltage ( Output ) - Filter connection for the internal quiescent voltage. |
| TSTO | 20,36 | Test Out ( Output ) - This pin is an output used for test purposes only and must be left 'floating' (no connection external to the pin). |
| AIN4A,B | 21,22 | Line-Level Analog Inputs ( Input ) - Single-ended stereo line-level analog inputs. |
| AIN3A,B | 23,24 | Line-Level Analog Inputs ( Input ) - Single-ended stereo line-level analog inputs. |
| AIN2A,B | 25,26 | Line-Level Analog Inputs ( Input ) - Single-ended stereo line-level analog inputs. |
| AIN1A,B | 29,30 | Line-Level Analog Inputs ( Input ) - Single-ended stereo line-level analog inputs. |
| AFILTA,AFILTB | 27,28 | Anti-alias Filter Connection (Output) - Anti-alias filter connection for analog passthrough mode. |
| SPKR/HP | 31 | Speaker/Headphone Switch ( Input ) - Powers down the left and/or right channel of the speaker and/or headphone outputs. |
| RESET | 32 | Reset ( Input ) - The device enters a low power mode when this pin is driven low. |
| VL | 33 | Digital Interface Power ( Input ) - Determines the required signal level for the serial audio inter- face and host control port. |
| VD | 34 | Digital Power ( Input ) - Positive power for the internal digital section. |
| DGND | 35 | Digital Ground ( Input ) - Ground reference for the internal digital section. |
| MCLK | 37 | Master Clock ( Input ) - Clock source for the delta-sigma modulators. |
| SCLK | 38 | Serial Clock ( Input/Output ) - Serial clock for the serial audio interface. |
| SDIN | 39 | Serial Audio Data Input ( Input ) - Input for two's complement serial audio data. |
| LRCK | 40 | Left Right Clock ( Input/Output ) - Determines which channel, Left or Right, is currently active on the serial audio data line. |
| GND/Thermal Pad | - | Ground reference for PWM power FETs and charge pump; thermal relief pad for optimized heat dissipation. |
CS43L22 Electrical Characteristics
AGND = 0 V; all voltages with respect to ground.
| Parameters | Parameters | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| VQ Characteristics | |||||
| Nominal Voltage | Nominal Voltage | - | 0.5•VA | - | V |
| Output Impedance | Output Impedance | - | 23 | - | k Ω |
| DC Current Source/Sink | DC Current Source/Sink | - | - | 1 | μ A |
| Power Supply Rejection Ratio Characteristics | |||||
| PSRR @1kHz (Note 14) | DAC (HP & Line Amps) | - | 60 | - | dB |
| PSRR @60 Hz (Note 14) | DAC (HP & Line Amps) | - | 60 | - | dB |
| PSRR @217 Hz | Full-Bridge PWM Outputs | - | 56 | - | dB |
CS43L22 Absolute Maximum Ratings
AGND = DGND = 0 V; all voltages with respect to ground.
| Parameters | Parameters | Symbol | Min | Max | Units |
|---|---|---|---|---|---|
| DC Power Supply | Analog | VA, VHP | -0.3 | 3.0 | V |
| Speaker | VP | -0.3 | 5.5 | V | |
| Digital | VD | -0.3 | 3.0 | V | |
| Serial/Control Port Interface | VL | -0.3 | 4.0 | V | |
| Input Current | (Note 1) | I in | - | ±10 | mA |
| Analog Input Voltage | (Note 2) | V IN | AGND-0.7 | VA+0.7 | V |
| External Voltage Applied to Analog Input | (Note 2) | V IN | AGND-0.3 | VA+0.3 | V |
| External Voltage Applied to Analog Output | V IN | -VHP - 0.3 | +VHP + 0.3 | V | |
| External Voltage Applied to Digital Input | (Note 2) | V IND | -0.3 | VL+ 0.3 | V |
| Ambient Operating Temperature (power applied) | T A | -50 | +115 | °C | |
| Storage Temperature | T stg | -65 | +150 | °C |
WARNING: Operation at or beyond these limits may result in permanent damage to the device. Normal operation is not guaranteed at these extremes.
- Any pin except supplies. Transient currents of up to ±100 mA on the analog input pins will not cause SCR latch-up.
- The maximum over/under voltage is limited by the input current.
Confidential Draft
10/7/08
CS43L22 Recommended Operating Conditions
AGND=DGND=0 V, all voltages with respect to ground.
| Parameters | Parameters | Symbol | Min | Max | Units |
|---|---|---|---|---|---|
| DC Power Supply | |||||
| Analog | Analog | VA | 1.65 | 2.63 | V |
| Headphone Amplifier | Headphone Amplifier | +VHP | 1.65 | 2.63 | V |
| Speaker Amplifier | Speaker Amplifier | VP | 1.6 | 5.25 | V |
| Digital | Digital | VD | 1.65 | 2.63 | V |
| Serial/Control Port Interface | Serial/Control Port Interface | VL | 1.65 | 3.47 | V |
| Ambient Temperature | Commercial | T A | -40 | 85 | ° C |
CS43L22 Thermal Information
The CS43L22 is available in a compact QFN package. The underside of the QFN package reveals a large metal pad that serves as a thermal relief to provide for maximum heat dissipation. This pad must mate with an equally dimensioned copper pad on the PCB and must be electrically connected to ground. A series of vias should be used to connect this copper pad to one or more larger ground planes on other PCB layers. In split ground systems, it is recommended that this thermal pad be connected to AGND for best performance. The CS43L22 evaluation board demonstrates the optimum thermal pad and via configuration.
Confidential Draft
10/7/08
CS43L22 Package Information
| INCHES | INCHES | INCHES | MILLIMETERS | MILLIMETERS | MILLIMETERS | NOTE | |
|---|---|---|---|---|---|---|---|
| DIM | MIN | NOM | MAX | MIN | NOM | MAX | |
| A | -- | -- | 0.0394 | -- | -- | 1.00 | 1 |
| A1 | 0.0000 | -- | 0.0020 | 0.00 | -- | 0.05 | 1 |
| b | 0.0071 | 0.0091 | 0.0110 | 0.18 | 0.23 | 0.28 | 1,2 |
| D | 0.2362 BSC | 0.2362 BSC | 0.2362 BSC | 6.00 BSC | 6.00 BSC | 6.00 BSC | 1 |
| D2 | 0.1594 | 0.1614 | 0.1634 | 4.05 | 4.10 | 4.15 | 1 |
| E | 0.2362 BSC | 0.2362 BSC | 0.2362 BSC | 6.00 BSC | 6.00 BSC | 6.00 BSC | 1 |
| E2 | 0.1594 | 0.1614 | 0.1634 | 4.05 | 4.10 | 4.15 | 1 |
| e | 0.0197 BSC | 0.0197 BSC | 0.0197 BSC | 0.50 BSC | 0.50 BSC | 0.50 BSC | 1 |
| L | 0.0118 | 0.0157 | 0.0197 | 0.30 | 0.40 | 0.50 | 1 |
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
| Part Number | Manufacturer | Package |
|---|---|---|
| CS43L22-CNZ | Cirrus Logic | QFN-40 |
| CS43L22-CNZR | Cirrus Logic | 40L-QFN |
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Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.
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