Si4720-A-EVB Silicon Laboratories Inc, Si4720-A-EVB Datasheet - Page 39

• Manufacturer Part Number: Si4720-A-EVB
• Description: WiFi / 802.11 Modules & Development Tools Si4720 Eval Board Use Si4721-A-EVB.
• Manufacturer: Silicon Laboratories Inc

Specifications of Si4720-A-EVB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

0x0201
0x0202
0x1100
0x1105
0x1106
0x1107
0x1108
0x1200
0x1201
0x1202
0x1203
0x1204
0x1207
0x1300
0x1302
0x1303
0x1400
0x1401
0x1402
0x1403
0x1404
Prop
FM_BLEND_STEREO_THRESHO
FM_SOFT_MUTE_RATE
FM_SEEK_BAND_TOP
FM_ANTENNA_INPUT
REFCLK_PRESCALE
MAX_ATTENUATION
FM_BLEND_MONO_
FM_RSQ_RSSI_LO_
FM_RSQ_SNR_LO_
FM_RSQ_RSSI_HI_
FM_RSQ_SNR_HI_
SNR_THRESHOLD
SNR_THRESHOLD
FM_DEEMPHASIS
FM_RSQ_BLEND_
FM_SOFT_MUTE_
FM_SOFT_MUTE_
FM_SEEK_BAND_
FM_SEEK_FREQ_
FM_SEEK_TUNE_
FM_SEEK_TUNE_
RSSI_TRESHOLD
FM_MAX_TUNE_
REFCLK_FREQ
FM_RSQ_INT_
THRESHOLD
THRESHOLD
THRESHOLD
THRESHOLD
THRESHOLD
THRESHOLD
SPACING
SOURCE
BOTTOM
ERROR
Name
LD
Table 21. Si472x Property Summary (Continued)
Sets frequency of reference clock in Hz. The range is
31130 to 34406 Hz, or 0 to disable the AFC. Default is
32768 Hz.
Sets the prescaler value for RCLK input.
Sets deemphasis time constant. Default is 75 µs.
Sets RSSI threshold for stereo blend (Full stereo above
threshold, blend below threshold). To force stereo set this
to 0. To force mono set this to 127. Default value is
49 dBµV.
Sets RSSI threshold for mono blend (Full mono below
threshold, blend above threshold). To force stereo set this
to 0. To force mono set this to 127. Default value is
30 dBµV.
Selects the antenna type and the pin to which it is con-
nected. (Si4721 only).
Sets the maximum freq error allowed before setting the
AFC rail (AFCRL) indicator. Default value is 30 kHz.
Configures interrupt related to Received Signal Quality
metrics.
Sets high threshold for SNR interrupt.
Sets low threshold for SNR interrupt.
Sets high threshold for RSSI interrupt.
Sets low threshold for RSSI interrupt.
Sets the blend threshold for blend interrupt when bound-
ary is crossed.
Sets the attack and decay rates when entering and leav-
ing soft mute.
Sets maximum attenuation during soft mute (dB). Set to 0
to disable soft mute. Default is 16 dB.
Sets SNR threshold to engage soft mute. Default is 4 dB. 0x0004
Sets the bottom of the FM band for seek.
Default is 8750 (87.5 MHz).
Sets the top of the FM band for seek.
Default is 10790 (107.9 MHz).
Selects frequency spacing for FM seek.
Default value is 10 (100 kHz).
Sets the SNR threshold for a valid FM Seek/Tune.
Default value is 3 dB.
Sets the RSSI threshold for a valid FM Seek/Tune.
Default value is 20 dBµV.
Rev. 1.0
Description
Si4720/21-B20
Default
0x001E
0x001E
0x007F
0x007F
0x222E
0x2A26
0x000A
0x8000
0x0001
0x0002
0x0031
0x0000
0x0000
0x0000
0x0000
0x0081
0x0040
0x0010
0x0003
0x0014
39