CS43L22-CNZ
Low Power, Stereo DAC w/Headphone & Speaker AmpsThe CS43L22-CNZ is a low power, stereo dac w/headphone & speaker amps from Cirrus Logic. View the full CS43L22-CNZ datasheet below including electrical characteristics, absolute maximum ratings.
Manufacturer
Cirrus Logic
Category
Low Power, Stereo DAC w/Headphone & Speaker Amps
Package
40L-QFN
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
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
Applications
- PDA's
- Personal Media Players
- Portable Game Consoles
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, | 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 AIN3A,B | 21,22 | Line-Level Analog Inputs ( Input ) - Single-ended stereo line-level analog inputs. |
| 23,24 | Anti-alias Filter Connection (Output) - Anti-alias filter connection for analog passthrough | |
| AIN2A,B AIN1A,B AFILTA,AFILTB | 25,26 29,30 27,28 | mode. |
| SPKR/HP | 31 | Speaker/Headphone Switch ( Input ) - Powers down the left and/or right channel of the speaker |
| RESET | 32 | Reset ( Input ) - The device enters a low power mode when this pin is driven low. |
| 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. |
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 |
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
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 |
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
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 |
Ordering Information
| Product | Description | Package | Pb-Free | Grade | Temp Range | Container | Order # |
|---|---|---|---|---|---|---|---|
| CS43L22 | Low-Power Stereo DAC w/HP and Speaker Amps | 40L-QFN | Yes | Commercial | -40 to +85° C | Rail | CS43L22-CNZ |
| CS43L22 | for Portable Apps | 40L-QFN | Yes | Commercial | -40 to +85° C | Tape & Reel | CS43L22-CNZR |
| CDB43L22 | CS43L22 Evaluation Board | - | No | - | - | - | CDB43L22 |
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| CS43L22 | Cirrus Logic | — |
| CS43L22-CNZR | Cirrus Logic | 40L-QFN |
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