Texas Instruments TMS320C2810 User Manual

ac
R
s
ADCIN0
C
10 pF
p
C
1.25 pF
h
Switch
Typical Values of the Input Circuit Components:
Switch Resistance (R ): 1 k
on
W
1 k
W
Sampling Capacitor (C ): 1.25 pF
h
Parasitic Capacitance (C ): 10 pF
p
Source Resistance (R ): 50
s
W
28x DSP
Source
Signal
R
on
TMS320F2810, TMS320F2811, TMS320F2812
TMS320C2810, TMS320C2811, TMS320C2812
www.ti.com SPRS174T –APRIL 2001–REVISED MAY 2012
Table 6-45. AC Specifications
PARAMETER MIN TYP MAX UNIT
SINAD Signal-to-noise ratio + distortion 62 dB
SNR Signal-to-noise ratio 62 dB
THD (100 kHz) Total harmonic distortion –68 dB
ENOB (SNR) Effective number of bits 10.1 Bits
SFDR Spurious free dynamic range 69 dB
6.30.3 Current Consumption for Different ADC Configurations
Table 6-46. Current Consumption for Different ADC Configurations (at 25-MHz ADCCLK)
(1)
I
DDA
(TYP)
(2)
I
DDAIO
(TYP) I
DD1
(TYP) ADC OPERATING MODE/CONDITIONS
Mode A (Operational Mode):
40 mA 1 µA 0.5 mA • BG and REF enabled
• PWD disabled
Mode B:
• ADC clock enabled
7 mA 0 5 µA
• BG and REF enabled
• PWD enabled
Mode C:
• ADC clock enabled
1 µA 0 5 µA
• BG and REF disabled
• PWD enabled
Mode D:
• ADC clock disabled
1 µA 0 0
• BG and REF disabled
• PWD enabled
(1) Test Conditions:
• SYSCLKOUT = 150 MHz
• ADC module clock = 25 MHz
• ADC performing a continuous conversion of all 16 channels in Mode A
(2) I
DDA
– includes current into V
DDA1
/V
DDA2
and AVDDREFBG
Figure 6-39. ADC Analog Input Impedance Model
Copyright © 2001–2012, Texas Instruments Incorporated Electrical Specifications 145
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Texas Instruments TMS320C2810 Specifications

General

Brand	Texas Instruments
Model	TMS320C2810
Category	Signal Processors
Language	English