CS3511-CNZR Cirrus Logic Inc, CS3511-CNZR Datasheet

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CS3511-CNZR

Manufacturer Part Number
CS3511-CNZR
Description
IC AMP AUDIO PWR 10 STER 32QFN
Manufacturer
Cirrus Logic Inc
Type
Class Dr
Datasheet

Specifications of CS3511-CNZR

Output Type
2-Channel (Stereo)
Max Output Power X Channels @ Load
11.4W x 2 @ 6 Ohm
Voltage - Supply
8.5 V ~ 13.2 V
Features
Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type
Surface Mount
Package / Case
32-QFN
Product
Class-D
Output Power
11.8 W
Available Set Gain
27.3 dB
Thd Plus Noise
0.025 %, 0.019 %
Operating Supply Voltage
12 V
Supply Current
38 mA
Maximum Operating Temperature
+ 70 C
Audio Load Resistance
8 Ohms
Input Signal Type
Differential
Minimum Operating Temperature
- 10 C
Output Signal Type
Differential
Supply Type
Single
Supply Voltage (max)
13.5 V
Supply Voltage (min)
8.5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
598-1577 - BOARD REF CS3511 4LYR 1OZ CU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Features
Stereo 10 W High-efficiency Class-D Audio Power Amplifier
Closed-loop Advanced ΔΣ Architecture
True Spread Spectrum Modulation
Premium Quality Audio Amplification
Four Selectable Amplifier Gain Settings
Integrated Protection and Automatic Recovery
for Over-current, Under-voltage, and Thermal
Overload
Single-supply Operation (Typ. = 9-12 V)
No Bootstrap Capacitors Required
Low-power Standby Mode
Supports Differential or Single-ended Inputs
Thermally Enhanced 32-pin, 6 x 6 mm QFN
Package Requires No External Heat Sink
http://www.cirrus.com
99 dB Dynamic Range - System Level
0.025% THD+N @ 5 W - System Level
-104 dB Channel Separation
Negative Input
Negative Input
Positive Input
Positive Input
Channel 1
Channel 2
STATUS
SLEEP
GAIN0
GAIN1
MUTE
Control
Gain
Analog Power
Copyright  Cirrus Logic, Inc. 2009
Processing
Modulation
Processing
Modulation
(All Rights Reserved)
and
and
Digital Power
Common Applications
General Description
The CS3511 is a high-efficiency class-D PWM amplifier
that integrates on-chip over-current, under-voltage,
over-temperature protection, and error reporting. An on-
board regulator generates a 5 VDC supply used
to power the internal low-voltage analog and digital cir-
cuitry. The low R
rents up to 2.7 A, deliver high efficiency, allow a small
device package, and lower power supply voltage levels.
The CS3511 is available in a 32-pin QFN package in
Commercial grade (-10°C to +70°C). The CRD3511
customer reference design is also available. Please re-
fer to
ordering information.
Active Speakers
Portable Media Player Docking Stations
Mini/Micro Shelf Systems
Digital Televisions
Drive
Drive
Gate
Gate
“Ordering Information” on page 25
Charge Pump
Regulator
5 V
DS(ON)
outputs can source peak cur-
12 V
VP
CS3511
PGND
Negative Output
Negative Output
Positive Output
Positive Output
Channel 1
Channel 2
for complete
DS845F1
DEC ‘09

Related parts for CS3511-CNZR

CS3511-CNZR Summary of contents

Page 1

... The low R DS(ON) rents up to 2.7 A, deliver high efficiency, allow a small device package, and lower power supply voltage levels. The CS3511 is available in a 32-pin QFN package in Commercial grade (-10°C to +70°C). The CRD3511 customer reference design is also available. Please re- fer to “ ...

Page 2

... Under-Voltage Protection ...................................................................................................... 15 4.7.2 Over-Temperature Protection ................................................................................................ 15 4.7.3 Over-Current Protection ........................................................................................................ 15 4.8 Integrated 5 V Regulator ................................................................................................................ 15 4.9 Power Dissipation De-Rating ......................................................................................................... 15 4.10 Performance Measurements of the CS3511 ................................................................................ 16 4.11 Full-Bridge Output Filter ............................................................................................................... 16 5. POWER SUPPLY, GROUNDING, AND PCB LAYOUT ....................................................................... 17 5.1 Power Supply and Grounding ........................................................................................................ 17 5.1.1 Maximum Supply Voltage ...................................................................................................... 17 5 ...

Page 3

... LIST OF FIGURES Figure 1.Typical Connection Diagram - Stereo Amplifier with Differential Inputs ...................................... 11 Figure 2.Typical Connection Diagram - Stereo Amplifier with Single-Ended Inputs ................................. 12 Figure 3.CS3511 Input Stage .................................................................................................................... 13 Figure 4.Output Filter ................................................................................................................................ 16 Figure 5.THD+N vs. Output Power (RL= 8 Ω) .......................................................................................... 18 Figure 6.THD+N vs. Output Power (RL= 6 Ω) .......................................................................................... 18 Figure 7.THD+N vs. Output Power (RL= 8 Ω) .......................................................................................... 18 Figure 8.THD+N vs. Output Power (RL= 6 Ω ...

Page 4

... Status (Output logic high output indicates over-current or under-voltage condition, thermal over- load, that an output is shorted to ground or to another output, that the device is in low power mode (the STATUS 8 SLEEP pin is high), or that the device is in reset. A logic low state indicates that the CS3511 is ready to output audio ...

Page 5

... Volt Generator (Output) - Regulated 5 VDC source used to supply power to the input section (pins 2 5VGEN 21 and 28). 23 AGND 27 Analog Ground (Input) - Connect all pins together directly at the thermal pad of the CS3511. 30 IN2+ 24 Negative Analog Input (Input) - Negative Audio Signal for channel 2 and channel 1, respectively. IN2- 25 ...

Page 6

... The maximum over/under voltage is limited by the input current. 6 (Note 1) Symbol Min Typ -10 J Symbol Min (Note -0.3 (Note (Note 4) V -0.3 IND T - -65 stg CS3511 Max Units 13 +70 °C - +150 °C Max Units 13.2 V 14.0 ±10 mA V5D + 0.3 V +85 °C +150 °C “DC Electrical Char- DS845F1 ...

Page 7

... Gain1 = 1, Gain0 = 0 Gain1 = 1, Gain0 = 1 THD (Note 6) THD THD Ω (Note THD Ω (Note -60 dBi in DYR (Note 7) Inputs AC coupled to AGND SNR kHz CS O Gain1 = 0, Gain0 = 0 Gain1 = 0, Gain0 = 1 Gain1 = 1, Gain0 = 0 Gain1 = 1, Gain0 = 1 CS3511 16. Min Typ Max Units = 8 Ω 7 Ω Ω 9 Ω 11 Ω 9 Ω ...

Page 8

... THD+N<1%. See “Parameter Definitions” on page 22 8. All audio input signals supplied single ended to the CS3511 with the negative input terminated to GND through an impedance matching circuit as described in 9. Input impedance is measured between the positive (INx+) and negative (INx-) input pins of the CS3511. ...

Page 9

... DS(ON) V UVVPFALL V UVVPRISE V UV5VFALL V UV5VRISE V UVCPFALL V UVCPRISE Symbol (Note 11 (Note 11 (MUTE, SLEEP) (Note 11 250 μ 250 μ are invalid. The transition period between VIH and VIL should not exceed t IL CS3511 Min Typ Max Units - 5 5 325 - - 8.08 ...

Page 10

... Input - Input - Input - Input - Output 5.0 V Output 8 13.2 V Power MOSFET Output 8 13.2 V Power MOSFET Output 8 13.2 V Power MOSFET Output 8 13.2 V Power MOSFET Table 1. I/O Power Rails CS3511 Receiver 5.0 V; Internal 50 kΩ pull-down 5.0 V; Internal 50 kΩ pull-down 5 DS845F1 ...

Page 11

... V5A BIASCAP 29 AGND 30 VP CPUMP 18 OUT2+ DCAP 19 OUT2 5VGEN PGND 21 AGND 23 PGND V5D 2 REF 5 DGND 4 CS3511 0.1 µf 220uF 9 Full-Bridge Channel 1 Output Filter Audio Output 12 R (Note Ω Ω 0.1 µf 220 uF 16 Full-Bridge Channel 2 Output Filter Audio Output (Note 1) 6 Ω Ω ...

Page 12

... Incorrectly connecting the external charge pump circuitry can result in permanent damage to the device. 3. See Section 4.1 for important information regarding using Single-Ended inputs with the CS3511. Figure 2. Typical Connection Diagram - Stereo Amplifier with Single-Ended Inputs 12 GAIN0 ...

Page 13

... With these offsets at a min- imum, the outputs begin to switch and the CS3511 begins to slowly ramp the DC output offset potential to the steady-state DC offset voltage. This ramp is slow enough to keep the speaker movement in the subsonic range ...

Page 14

... Power Up and Power Down Sequence To minimize power-on and power-off transients, the device should be held in the MUTE state while powering up or powering down the CS3511. The SLEEP pin can be held in either the logic high state or logic low state during power-up or power-down. 4.6.1 Recommended Power-Up Sequence 1 ...

Page 15

... Integrated 5 V Regulator The CS3511 includes an internal 5 V regulator in order to provide a supply to the internal digital and analog circuitry. The output of the regulator is present on the 5VGEN pin. The regulator output pin should have a bypass capacitor connected to AGND and be connected to the digital and analog supply pins as shown in the Typical Connection Diagrams in GAIN0, and GAIN1 pins to a logic high state ...

Page 16

... CS3511 amplifier’s switching pattern will degrade the measurement result. One feature of the CS3511 is that it does not require large multi-pole filters to achieve excellent performance in listening tests, usually a more critical factor than performance measurements. The CRD3511 Evaluation Board uses the filter described in formance in listening tests ...

Page 17

... PCB layers; the copper in these ground planes will act as a heat sink for the CS3511. The CRD3511 reference design demonstrates the optimum thermal pad and via configuration. ...

Page 18

... Figure 8. THD+N vs. Output Power ( 0.5 % 0.2 0.1 GAIN=01 0.05 0.02 GAIN=00 0.01 10m 20m Ω) Figure 10. THD+N vs. Output Power (R L CS3511 12.0 V 9.0 V 50m 100m 200m 500m Ω kHz 1 kHz 100 Hz 5m 10m 20m 50m 100m 200m 500m Ω) ...

Page 19

... Figure 14. THD+N vs. Frequency ( 10k 20k = 8 Ω Figure 16. Frequency Response (P OUT L CS3511 Total Output Power (Watts Ω) (R OUT L 5.0 W 1 100 200 500 Ω 100 200 500 OUT See Note below. 18 ...

Page 20

... Figure 20. Output FFT (P L +20 +0 -20 - -60 V -80 -100 -120 -140 10k 20k = 8 Ω) Figure 22. Output FFT (P L CS3511 CH2 to CH1 CH1 to CH2 100 200 500 10k Ω) L 100 200 500 10k Ω OUT L 100 200 500 1k 2k ...

Page 21

... Output Power Per Channel (Watts) Figure 23. Efficiency (R DS845F1 100 Ω) L CS3511 Output Power Per Channel (Watts Ω) Figure 24. Efficiency ( ...

Page 22

... THD+N<1%. This technique ensures that the distortion components are below the noise level and do not effect the measurement. Expressed in decibels. Total Harmonic Distortion + Noise (THD+N) The ratio of the RMS value of the signal to the RMS sum of all other spectral components over the specified band width (typically kHz), including distortion components. Expressed in decibels. 22 CS3511 DS845F1 ...

Page 23

... JEDEC #: MO-220 Controlling Dimension is Millimeters. CS3511 e Pin #1 Corner Bottom View MILLIMETERS NOM MAX 0.85 0.90 -- 0.05 0.203 REF - 0.25 0.30 6.00 BSC - 4.60 4.70 6.00 BSC 4.60 4 ...

Page 24

... PCB. In either case beneficial to use copper fill in any unused regions inside the PCB layout, especially those immediately surrounding the CS3511. In addition to improving in electrical performance, this practice also aids in heat dissipation. ...

Page 25

... INFORMATION Product Description Stereo, 10W High-Efficiency CS3511 Class-D Audio Amplifier Layer / 1 oz. CRD3511-Q1 Copper Reference Design DS845F1 Package Pb-Free Grade Temp Range Container 32-QFN Yes Commercial -10° to +70° CS3511 Order# Rail CS3511-CNZ Tape and CS3511-CNZR Reel - - CRD3511-Q1 25 ...

Page 26

... Cirrus Logic, Cirrus, and the Cirrus Logic logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners. 26 Changes 7. “AC Electrical Characteristics” table on page “DC Electrical Characteristics” table on page 8. CS3511 “AC Electrical 7. 9. DS845F1 ...

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