SI4709-B-GM Silicon Laboratories Inc, SI4709-B-GM Datasheet - Page 21

• Manufacturer Part Number: SI4709-B-GM
• Description: IC FM RADIO TUNER 20-QFN
• Manufacturer: Silicon Laboratories Inc
• Series: -r

Specifications of SI4709-B-GM

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

Register 02h. Power Configuration
Reset value = 0x0000
Name
Type
Bit
Bit
15
14
13
12
10
11
9
8
DSMUTE DMUTE MONO
D15
R/W
SKMODE
DSMUTE
Reserved
SEEKUP
DMUTE
MONO
RDSM
Name
SEEK
D14
R/W
D13 D12 D11
R/W
Softmute Disable.
0 = Softmute enable (default).
1 = Softmute disable.
Mute Disable.
0 = Mute enable (default).
1 = Mute disable.
Mono Select.
0 = Stereo (default).
1 = Force mono.
Reserved.
Always write to 0.
RDS Mode (Si4709 only).
0 = Standard (default).
1 = Verbose.
Refer to “4.4. RDS/RBDS Processor and Functionality”.
Seek Mode.
0 = Wrap at the upper or lower band limit and continue seeking (default).
1 = Stop seeking at the upper or lower band limit.
Seek Direction.
0 = Seek down (default).
1 = Seek up.
Seek.
0 = Disable (default).
1 = Enable.
Notes:
1. Seek begins at the current channel, and goes in the direction specified with the SEEKUP
2. The STC bit is set high when the seek operation completes and/or the SF/BL bit is set
3. Seek performance for 50 kHz channel spacing varies according to RCLK tolerance.
4. A seek operation may be aborted by setting SEEK = 0.
R/W
0
bit. Seek operation stops when a channel is qualified as valid according to the seek
parameters, the entire band has been searched (SKMODE = 0), or the upper or lower
band limit has been reached (SKMODE = 1).
high if the seek operation was unable to find a channel qualified as valid according to the
seek parameters. The STC and SF/BL bits must be set low by setting the SEEK bit low
before the next seek or tune may begin.
Silicon Laboratories recommends ±50 ppm RCLK crystal tolerance for 50 kHz seek
performance.
RDSM SKMODE SEEKUP SEEK
R/W
D10
R/W
Confidential Rev. 1.4
R/W
D9
R/W R/W
D8
Function
D7
0
DISABLE
R/W
D6
R/W R/W R/W R/W R/W
D5 D4 D3 D2 D1
0
Si4708/09-B
0
0
0
0
ENABLE
R/W
D0
21