SM320F2812-HT Datasheet, PDF (136/155 Pages) Texas Instruments – Digital Signal Processor

SM320F2812-HT
SGUS062A – JUNE 2009 – REVISED APRIL 2010
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Table 6-47. AC Specifications^{(1) (2)}
PARAMETER
T_A = –55°C to 125°C
MIN TYP MAX
T_A = 220°C
UNIT
MIN TYP MAX
SINAD
Signal-to-noise ratio + distortion
62
57
dB
SNR
Signal-to-noise ratio
62
57
dB
THD
Total harmonic distortion
-68
-68
dB
ENOB (SNR) Effective number of bits
10.1
9.1
Bits
SFDR
Spurious free dynamic range
69
68
dB
(1) Not production tested.
(2) Validated at the following conditions: ADC Input Frequency = 10.71 KHz, XCLKIN = 30 MHz, PLLCR = 0xA (SYSCLK = 150 MHz),
HSPCP = 3 (ADCCLK= 25 MHz), ADCCLKPS = 1 (ADCCLK= 12.5 MHz), CPS = 0 (ADCCLK =12.5 MHZ), ACQ_PS (SH) = 3
6.29.3 Current Consumption for Different ADC Configurations (at 25-MHz ADCCLK)
Table 6-48. Current Consumption⁽¹⁾
I_DDA (TYP) ⁽²⁾
40 mA
7 mA
I_DDAIO (TYP)
1 mA
0
I_DD1 (TYP)
0.5 mA
5 mA
1 mA
0
5 mA
1 mA
0
0
(1) Not production tested.
(2) IDDA – includes current into V_DDA1/ V_DDA2 and AV_DDREFBG
(3) Test Conditions: SYSCLKOUT = 150 MHz
ADC module clock = 25 MHz
ADC performing a continuous conversion of all 16 channels in Mode A
ADC OPERATING MODE/CONDITIONS⁽³⁾
Mode A (Operational Mode):
–BG and REF enabled
–PWD disabled
Mode B:
–ADC clock enabled
–BG and REF enabled
–PWD enabled
Mode C:
–ADC clock enabled
–BG and REF disabled
–PWD enabled
Mode D:
–ADC clock disabled
–BG and REF disabled
–PWD enabled
136 Electrical Specifications
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