SI4703-B16-GM Silicon Laboratories Inc, SI4703-B16-GM Datasheet - Page 27

• Manufacturer Part Number: SI4703-B16-GM
• Description: IC FM RADIO TUNER 20QFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4703-B16-GM

• Frequency: 76MHz ~ 108MHz
• Sensitivity: -99dBm
• Modulation Or Protocol: FM
• Applications: Cellular, MP3, PDAs, Portable Radios
• Current - Receiving: 18mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Data Rate - Maximum: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 336-1334-1

Register 05h. System Configuration 2
Reset value = 0x0000
Name
Type
15:8
Bit
Bit
7:6
5:4
3:0
D15
VOLUME[3:0]
SEEKTH[7:0]
SPACE[1:0]
BAND[1:0]
Name
D14
D13
SEEKTH[7:0]
RSSI Seek Threshold.
0x00 = min RSSI (default).
0x7F = max RSSI.
SEEKTH presents the logarithmic RSSI threshold for the seek operation. The Si4703
will not validate channels with RSSI below the SEEKTH value. SEEKTH is one of
multiple parameters that can be used to validate channels. For more information, see
"AN284: Si4700/01 Firmware 15 Seek Adjustability and Settings."
Band Select.
00 = 87.5–108 MHz (USA,Europe) (Default).
01 = 76–108 MHz (Japan wide band).
10 = 76–90 MHz (Japan).
11 = Reserved.
Channel Spacing.
00 = 200 kHz (USA, Australia) (default).
01 = 100 kHz (Europe, Japan).
10 = 50 kHz.
Volume.
Relative value of volume is shifted –30 dBFS with the VOLEXT 06h[8] bit.
VOLEXT = 0 (default).
0000 = mute (default).
0001 = –28 dBFS.
:
:
1110 = –2 dBFS.
1111 = 0 dBFS.
VOLEXT = 1.
0000 = mute.
0001 = –58 dBFS.
:
:
1110 = –32 dBFS.
1111 = –30 dBFS.
FS = full scale.
Volume scale is logarithmic.
D12
R/W
D11
D10
Confidential Rev. 1.1
D9
D8
BAND[1:0] SPACE[1:0]
D7
R/W
Function
D6
D5
R/W
D4
Si4703-B16
D3
VOLUME[3:0]
D2
R/W
D1
D0
27