Cirrus-logic CS35L32 Bedienungsanleitung

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Copyright Cirrus Logic, Inc. 2014
(All Rights Reserved)
http://www.cirrus.com
JUL ‘14
DS963F4
Boosted Class D Amplifier with Speaker-Protection Monitoring
and Flash LED Drivers
Mono Class D Speaker Amplifier
Two-level Class G operation:
Boosted: 5 V nominal
Bypassed: battery voltage is supplied directly
2.5-mA quiescent current, monitors powered down
1.7 W into 8 (@ 10% THD+N)
102-dB signal-to-noise ratio (SNR, A-weighted)
Idle channel noise 25 Vrms (A-weighted)
90% efficiency
Audio Input and Gain
One differential analog input
Speaker gain:
9, 12, 15, and 18 dB and mute
Pop suppression, zero-crossing detect transitions
Flash LED Drivers
Integrated dual LED drivers using the following:
Boost supply output voltage
Dual matched current regulators, 750 mA max each
Programmable setting for Flash Mode current:
50–750 mA, in 50-mA steps
Programmable setting for Flash-Inhibit Mode current:
50–350 mA, in 50-mA steps
Programmable setting for Movie Mode current:
150, 120, 100, 80, 60, 40, 20 mA
Programmable flash timer setting:
50–500 ms, in 25-ms steps
Dedicated pin for flash trigger (FLEN)
Dedicated pin for flash inhibit (FLINH)
Thermally managed through boost-voltage regulation
(Features continue on page 2)
Class D Power Stage
SPKR SUPPLY
VP
GNDPLED
Current Mode Synchronous
Boost Controller
VCOM
Range
Scaling
Class D Front End
Short Circuit Protection
∆Σ Class D Modulator
V
REF
Generation
Bandgap
Voltage
Generation
FILT+
VREF
ISENSE+
ISENSE–/
VSENSE+
GNDA
SCLKLRC K
Soft Ramp
Level Shifters
I²C Control Port
SDASCLSCLK LRCK SDOUT
MCLK
IN
+
9 ,12 ,15 , or
18 dB + Mute
IN+
Flash LED Current Driver
Control,
Sensing,
and Fault
Protection
FLOUT1 FLOUT2/AD0FLEN FLINH
SPKOUT+
SPKOUT/
VSENSE–
I
2
C Class G Override
Watchdog
Error
GNDP
VSENSE–
VSENSE+
ISENSE–
ISENSE+
SPKR
SUPPLY

ADC
Serial Audio/Data Port
Serial Port
Clock Generation
VA
RESET INT
VMON ADC
Front End
LP
IMON ADC
Front End
LP
Low Battery Management
Class G
VBST
Current
Sense
IREF+SW
Power
Budgeting
Temperature
Sensor
Overtemp
Protection

ADC

ADC
CS35L32
Seitenansicht 0
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Inhaltsverzeichnis

Seite 1 - Flash LED Drivers

Copyright  Cirrus Logic, Inc. 2014(All Rights Reserved)http://www.cirrus.comJUL ‘14DS963F4Boosted Class D Amplifier with Speaker-Protection Monitorin

Seite 2 - General Description

10 DS963F4CS35L323 Characteristics and SpecificationsTable 3-6. Speaker Amplifier Output CharacteristicsTest conditions, except where noted otherwise:

Seite 3

DS963F4 11CS35L323 Characteristics and SpecificationsTable 3-7. Signal Monitoring CharacteristicsTest conditions, except where noted otherwise: VA = 1

Seite 4 - Table of Contents

12 DS963F4CS35L323 Characteristics and SpecificationsTable 3-9. PSRR CharacteristicsTest conditions, except where noted otherwise: VA = 1.8 V, VP = 3.

Seite 5 - 1 Pin Descriptions

DS963F4 13CS35L323 Characteristics and SpecificationsTable 3-12. Switching Specifications: ADSP in I2S ModeTest conditions, except where noted otherwi

Seite 6 - 6 DS963F4

14 DS963F4CS35L323 Characteristics and SpecificationsTable 3-13. Switching Specifications: I²C Control PortTest conditions, except where noted otherwi

Seite 7 - 2 Typical Connection Diagram

DS963F4 15CS35L324 Functional Description4 Functional DescriptionFigure 4-1. CS35L32 Block Diagram4.1 Power SuppliesThe VA and VP supplies are require

Seite 8 - Table 3-3. DC Characteristics

16 DS963F4CS35L324.3 Speaker AmplifierTo clear any status bits set due to the initiation of a path or block, all interrupt status bits should be read

Seite 9 - DS963F4 9

DS963F4 17CS35L324.4 Low-Battery Management4.3.2 Class G Operation with LEDs OnIf LEDs are active, the speaker amplifier supply in one of the followin

Seite 10 - 10 DS963F4

18 DS963F4CS35L324.5 Undervoltage Lockout (UVLO)4.5 Undervoltage Lockout (UVLO)If the VP level falls below the lockout threshold specified in Table 3-

Seite 11 - DS963F4 11

DS963F4 19CS35L324.8 Signal Monitoring4.7.1 Error ConditionsTable 4-3 lists overtemperature error status and mask bits. The overtemperature error and

Seite 12 - OPERATING

2 DS963F4CS35L32 General DescriptionThe CS35L32 is a low-quiescent power-integrated audio IC, with a mono full-bridge Class D speaker amplifier operat

Seite 13 -  = “S” or “M”

20 DS963F4CS35L324.8 Signal Monitoring4.8.2 Monitoring Voltage across the Load—VMONAs shown in Fig. 4-5, monitoring on VMON is accomplished via the VS

Seite 14

DS963F4 21CS35L324.9 LED Driver4.8.4 Monitoring Voltage on the VP Pin—VPMONMonitoring of the voltage present on the VP pin is integrated internally to

Seite 15 - 4 Functional Description

22 DS963F4CS35L324.9 LED DriverThe CS35L32 is driven to flash when FLEN is asserted high. The I2C interface allows a host to program Flash and Movie M

Seite 16 - 4.3 Speaker Amplifier

DS963F4 23CS35L324.10 Power Budgeting4.9.3 LED Lighting Status RegisterThe LED lighting status register (see Section 7.22) reports the state of LEDs a

Seite 17 - 4.4 Low-Battery Management

24 DS963F4CS35L324.11 Audio/Data Serial Port (ADSP)4.10.3 Audio and LED OperationWhen audio and LEDs are operating simultaneously, the user can select

Seite 18 - 4.6 Boost Converter

DS963F4 25CS35L324.11 Audio/Data Serial Port (ADSP)4.11.1.1 Tristating the ADSP SDOUT Path (SDOUT_3ST)If the SDOUT functionality of the ADSP is not re

Seite 19 - 4.8 Signal Monitoring

26 DS963F4CS35L324.12 Signaling FormatThe CS35L32 transmits data that is from 24 to 32 bits deep per channel sample. If fewer than 24 serial clocks ar

Seite 20 - 4.8.3.2 IMON Sense Resistor

DS963F4 27CS35L324.12 Signaling Format4.12.2 Transmitting Data from a Single-CS35L32 ConfigurationFor a single CS35L32, the user clears SHARE (see p.

Seite 21 - Flash LED Current Drivers

28 DS963F4CS35L324.12 Signaling Format4.12.3 Transmitting Data from a Dual-CS35L32 ConfigurationTo indicate a dual-CS35L32 configuration where the SDO

Seite 22

DS963F4 29CS35L324.13 Device Clocking4.13 Device ClockingThe device can operate as a clock master, creating both SCLK and LRCK for itself and for othe

Seite 23 - 4.10 Power Budgeting

DS963F4 3CS35L32 The battery voltage, speaker voltage, and speaker current signals are monitored, digitized using  converters, and serialized over a

Seite 24 - LRCK SCLK SDOUT

30 DS963F4CS35L324.14 Control Port Operation4.13.3 Error ConditionsMCLK, SCLK, and LRCK are monitored for clocking and configuration errors. If an MCL

Seite 25 - 4.11.3.1 Data Bit Depths

DS963F4 31CS35L324.14 Control Port OperationFigure 4-11. Control-Port Timing—I2C Writes with AutoincrementThe logic state of FLOUT2/AD0 configures the

Seite 26 - 4.12 Signaling Format

32 DS963F4CS35L325 ApplicationsReceive acknowledge bit.Send stop condition, aborting write. Send start condition. Send 10000001 (chip address and read

Seite 27 - DS963F4 27

DS963F4 33CS35L325.3 External Component and PCB Design Considerations—EMI OutputTo avoid the current transient on the VP node, the boost converter man

Seite 28

34 DS963F4CS35L325.5 Inductor SelectionFigure 5-2. Ground Ball Locations (Shown in Gray)Also, as space permits, traces should be wider than 12 mils as

Seite 29 - 4.13 Device Clocking

DS963F4 35CS35L326 Register Quick Reference6 Register Quick ReferenceDefault values are shown below the bit names.I²C Address:AD0 = 0: 1000000[R/W] –

Seite 30 - 4.14 Control Port Operation

36 DS963F4CS35L327 Register Descriptions7 Register DescriptionsAll registers are read/write except for the chip ID and revision register and the statu

Seite 31 - 1 0 0 0 0 0 x 1

DS963F4 37CS35L327.6 Power Control 2 7.6 Power Control 2Address 0x07R/W76543210PDN_VMON PDN_IMON PDN_VPMON — SDOUT_3ST —Default11101000Bits Name Desc

Seite 32 - 5 Applications

38 DS963F4CS35L327.9 Battery Voltage Monitor 7.9 Battery Voltage MonitorAddress 0x0AR/O76543210VPMON[7:0]Default00000000Bits Name Description7:0 VPMON

Seite 33

DS963F4 39CS35L327.13 ADSP Control7.13 ADSP ControlAddress 0x0FR/W76543210ADSP_DRIVE M/S DATCNF[1:0] SHARE —Default00100000Bits Name Description7ADSP_

Seite 34 - 5.5 Inductor Selection

4 DS963F4CS35L32 Table of Contents1 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Typical Connection

Seite 35 - 6 Register Quick Reference

40 DS963F4CS35L327.16 Interrupt Mask 10OTE_RLSOvertemperature error protection release. Releases (removes) OTE-caused Speaker-Safe Mode if the OTE con

Seite 36 - 7 Register Descriptions

DS963F4 41CS35L327.18 Interrupt Mask 37.18 Interrupt Mask 3Address 0x14R/W76 5 4 3 2 1 0M_UVLOM_LED2_OPEN M_LED2_SHORT M_LED1_OPEN M_LED1_SHORTM_LOWBA

Seite 37 - 7.8 Low Battery Thresholds

42 DS963F4CS35L327.20 Interrupt Status 2 (Monitors)7.20 Interrupt Status 2 (Monitors)Address 0x16R/O76543210VMON_OVFL IMON_OVFL VPMON_OVFL — PDN_DONED

Seite 38 - 7.11 Scaling

DS963F4 43CS35L327.22 LED Lighting Status7.22 LED Lighting StatusAddress 0x18R/O76543210LED1_FLEV LED2_FLEV LED1_MVEV LED2_MVEV LED_FLEN LED_FLINH LED

Seite 39 - 7.13 ADSP Control

44 DS963F4CS35L327.24 LED Movie Mode Current7.24 LED Movie Mode CurrentAddress 0x1AR/W76543210— LED_MVCUR[2:0] —LED1_MVENLED2_MVENDefault00000000Bits

Seite 40 - 7.17 Interrupt Mask 2

DS963F4 45CS35L328 Typical Performance Plots8 Typical Performance Plots8.1 System-Level Efficiency and Power-Consumption PlotsFor all system-level eff

Seite 41 - 7.18 Interrupt Mask 3

46 DS963F4CS35L328.2 Audio Output Typical Performance Plots8.2 Audio Output Typical Performance PlotsTo avoid nonlinearities (distortion) introduced b

Seite 42 - 42 DS963F4

DS963F4 47CS35L328.3 Monitoring Typical Performance Plots8.3 Monitoring Typical Performance PlotsUnless otherwise noted, all VMON/IMON plots use the a

Seite 43 - 7.23 LED Flash Mode Current

48 DS963F4CS35L328.3 Monitoring Typical Performance PlotsFigure 8-13. IMON THD+N Ratio vs. Frequency—Bypass Mode (VBST = VP = 3.6 V, Load = 0.5 W)Fixe

Seite 44 - 7.25 LED Flash Timer

DS963F4 49CS35L329 Parameter Definitions9 Parameter DefinitionsFigure 8-17. VMON to IMON Phase vs. Frequency @ 1 W—Fixed-Boost Mode (VBST = 5 V)Load =

Seite 45 - 8 Typical Performance Plots

DS963F4 5CS35L321 Pin Descriptions1 Pin DescriptionsFigure 1-1. Top-Down (Through-Package) View—30-Ball WLCSP Package‘‘‘‘‘SDA SCL SDOUT SCLK MCLK FLOU

Seite 46 - 46 DS963F4

50 DS963F4CS35L3210 Package Dimensions10 Package DimensionsFigure 10-1. 30-Ball WLCSP Package Drawing 11 Thermal Characteristics12 Ordering Informatio

Seite 47 - VBST = VP

DS963F4 51CS35L3213 References13 References1. NXP Semiconductors (founded by Philips Semiconductor), The I²C-Bus Specification and User Manual. UM1020

Seite 48 - 48 DS963F4

6 DS963F4CS35L321 Pin DescriptionsRESETB3 VA I Reset. When asserted, the device enters a low-power mode, outputs are set to Hi-Z, and I²C register val

Seite 49 - 9 Parameter Definitions

DS963F4 7CS35L322 Typical Connection Diagram2 Typical Connection DiagramFigure 2-1. Typical Connection DiagramBattery1 HCOUT0.1 0.1 F**LBST44.2 kR

Seite 50 - 12 Ordering Information

8 DS963F4CS35L323 Characteristics and Specifications3 Characteristics and SpecificationsTable 3-1. Recommended Operating ConditionsGNDA = GNDP = 0 V,

Seite 51 - 14 Revision History

DS963F4 9CS35L323 Characteristics and Specifications Table 3-4. Boost Converter CharacteristicsTest conditions, except where noted otherwise: VA = 1.8

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