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PDF CS53L21 Data sheet ( Hoja de datos )
| Número de pieza | CS53L21 | |
| Descripción | Stereo Analog to Digital Converter | |
| Fabricantes | Cirrus Logic | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CS53L21 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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CS53L21
Low-Power, Stereo Analog-to-Digital Converter
FEATURES
98-dB dynamic range (A-weighted)
–88-dB THD+N
Analog gain controls
– +32-dB or +16-dB mic preamps
– Analog programmable gain amplifier (PGA)
+20-dB digital boost
Programmable automatic level control (ALC)
– Noise gate for noise suppression
– Programmable threshold and
attack/release rates
Independent left/right channel control
Digital volume control
High-pass filter disable for DC measurements
Stereo 3:1 analog input MUX
Dual mic inputs
– Programmable, low noise mic bias levels
– Differential mic mix for common mode
noise rejection
Very low 64 Fs oversampling clock reduces
power consumption
SYSTEM FEATURES
24-bit conversion
4–96 kHz sample rate
Multibit delta–sigma architecture
Low power operation
– Stereo record (ADC): 8.72 mW @ 1.8 V
– Stereo record (mic to PGA and ADC): 13.73
mW @ 1.8 V
Variable power supplies
– 1.8–2.5-V digital and analog
– 1.8–3.3-V interface logic
Power down management
– ADC, mic preamplifier, PGA
Software Mode (I²C™ and SPI™ control)
Hardware Mode (standalone control)
Flexible clocking options
– Master or slave operation
Digital routing mixes
– Mono mixes
1.8 V to 3.3 V
1.8 V to 2.5 V
Hardware Mode
or I2C & SPI
Software Mode
Control Data
Reset
Serial Audio
Output
Digital
Signal
Processing
Engine
ALC
High Pass
Filters
Register
Configuration
Multibit
Oversampling MUX PGA
Volume
Controls
ADC
MUX
+32 dB
Multibit
Oversampling MUX PGA
+32 dB
ADC
MIC
ALC Bias
Stereo Input 1
Stereo Input 2
Stereo Input 3 /
Mic Input 1 & 2
http://www.cirrus.com
Copyright Cirrus Logic, Inc. 2005–2015
(All Rights Reserved)
DS700F1
JUL ‘15
1 page  
CS53L21
Figure 21.AIN and PGA Selection ............................................................................................................. 43
Figure 22.ADC THD+N vs. Frequency w/Capacitor Effects ...................................................................... 51
Figure 23.ADC Passband Ripple .............................................................................................................. 53
Figure 24.ADC Stopband Rejection .......................................................................................................... 53
Figure 25.ADC Transition Band ................................................................................................................ 53
Figure 26.ADC Transition Band Detail ...................................................................................................... 53
LIST OF TABLES
Table 1. I/O Power Rails ............................................................................................................................. 8
Table 2. Hardware Mode Feature Summary ............................................................................................. 21
Table 3. MCLK/LRCK Ratios .................................................................................................................... 28
DS700F1
5
5 Page 
CS53L21
3. CHARACTERISTIC AND SPECIFICATION TABLES
(All Min/Max characteristics and specifications are guaranteed over the Specified Operating Conditions. Typical per-
formance characteristics and specifications are derived from measurements taken at nominal supply voltages and
TA = 25° C.)
SPECIFIED OPERATING CONDITIONS
(AGND=DGND=0 V, all voltages with respect to ground.)
Parameters
DC Power Supply (Note 1)
Analog Core
Digital Core
Serial/Control Port Interface
Ambient Temperature
Commercial - CNZ
Automotive - DNZ
Symbol
VA
VD
VL
TA
Min
1.65
1.65
1.65
-10
-40
Max
2.63
2.63
3.47
+70
+85
Units
V
V
V
C
C
Note:
1. The device will operate properly over the full range of the analog, digital core and serial/control port in-
terface supplies.
ABSOLUTE MAXIMUM RATINGS
(AGND = DGND = 0 V; all voltages with respect to ground.)
Parameters
Symbol
Min
Max Units
DC Power Supply
Analog
Digital
Serial/Control Port Interface
Input Current
(Note 2)
Analog Input Voltage
(Note 3)
Digital Input Voltage
(Note 3)
Ambient Operating Temperature (power applied)
Storage Temperature
VA
VD
VL
Iin
VIN
VIND
TA
Tstg
-0.3
-0.3
-0.3
-
AGND-0.7
-0.3
-50
-65
3.0
3.0
4.0
±10
VA+0.7
VL+ 0.4
+115
+150
V
V
V
mA
V
V
°C
°C
WARNING: Operation at or beyond these limits may result in permanent damage to the device. Normal operation
is not guaranteed at these extremes.
Notes:
2.
3.
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.
DS700F1
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CS53L21.PDF ] | |
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