Datasheet
AFE4490
SBAS602F –DECEMBER 2012–REVISED OCTOBER 2013
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REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision E (October 2013) to Revision F Page
• Changed LED_DRV_SUP parameter in Recommended Operating Conditions table .......................................................... 3
• Changed V
LED
footnote and added V
HR
footnote to Recommended Operating Conditions table ......................................... 3
• Changed TXM to TXN in V
LED
footnote of Recommended Operating Conditions table ....................................................... 3
• Changed Figure 76 (changed TXP and TXN pin names, deleted LED 1 and LED 2 pin names) ...................................... 45
• Changed Table 7 (added V
HR
columns to table) ................................................................................................................ 66
Changes from Revision D (May 2013) to Revision E Page
• Deleted chip graphic ............................................................................................................................................................. 1
• Changed 2.3 mA to 2.3 mW in 4th sub-bullet and changed 250 µs to 4 ms in 5th sub-bullet of Receive Channel with
High Dynamic Range Features bullet ................................................................................................................................... 1
• Changed Rx, Tx supplies, deleted 5-V supply, and added editorial edits to front-page graphic .......................................... 1
• Changed Tx Power Supply column in Family and Ordering Information table ..................................................................... 2
• Changed conditions of Electrical Characteristics table ......................................................................................................... 4
• Changed Performance, PRF parameter minimum specification in Electrical Characteristics table ..................................... 4
• Deleted duplicate Performance, I
IN_FS
parameter from Electrical Characteristics table ....................................................... 4
• Changed PRF = 1300 Hz to PRF = 1200 Hz in test conditions for the Performance, Total integrated noise current
and N
FB
parameters in Electrical Characteristics table ......................................................................................................... 4
• Changed Ambient Cancellation Stage, Gain parameter in Electrical Characteristics table ................................................. 5
• Added last two Low-Pass Filter parameters to Electrical Characteristics table .................................................................... 5
• Added Diagnostics, Diagnostics current parameter to Electrical Characteristics table ........................................................ 6
• Changed TX_REF description in Pin Descriptions table .................................................................................................... 12
• Changed C
F
to C and added TX_REF capacitor to Figure 53 ........................................................................................... 22
• Updated Figure 54 .............................................................................................................................................................. 23
• Changed second sentence in second paragraph of Receiver Front-End section .............................................................. 23
• Changed third paragraph of Receiver Front-End section ................................................................................................... 23
• Changed second paragraph of Ambient Cancellation Scheme section ............................................................................. 25
• Added last paragraph and Table 2 to Ambient Cancellation Scheme section ................................................................... 26
• Updated Figure 57 .............................................................................................................................................................. 27
• Updated Figure 59 .............................................................................................................................................................. 29
• Added footnote 1 to Table 3 and changed Example column in Table 3 ............................................................................. 31
• Changed corresponding register column description in rows t
13
, t
15
, t
17
, and t
19
and example column values for rows
t
22
, t
24
, t
26
, and t
28
in Table 3 ............................................................................................................................................... 31
• Updated Figure 62 .............................................................................................................................................................. 32
• Updated Figure 63 .............................................................................................................................................................. 33
• Changed second paragraph of ADC Operation and Averaging Module section ................................................................ 34
• Updated Equation 3 and Figure 65 ..................................................................................................................................... 35
• Updated Figure 66 .............................................................................................................................................................. 36
• Added first paragraph of AFE Output Mode (ADC Bypass Mode) section ......................................................................... 37
• Updated Figure 69 .............................................................................................................................................................. 38
• Deleted supply voltage range from RX_ANA_SUP and RX_DIG_SUP in Figure 70 ......................................................... 39
• Changed entire Transmit Section ....................................................................................................................................... 40
• Deleted _5V from TX_CTRL_SUP and LED_DRV_SUP in Figure 73 ............................................................................... 43
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