User`s guide

Si47xx-EVB
Rev. 0.8 27
2.2.6. Test Circuit Interfaces
Table 6 shows the test circuit interface connections for Si47xx EVBs.
Table 6. Si47xx Test Circuit Connections
EVB Kit Name Receiver AM/SW/LW
Test
Options
AM/SW/LW
Connections
FM Test
Options
FM Connections Audio Out
Test Options
Audio Out
Connections
Audio In
Test
Options
Audio In
Connections
Si4705-X-EVB Si4705 None None FMI / SMA J28 through C1.
Remove C9 for
best sensitivity
Unity Gain
Buffer / RCA
J6 (Baseboard) None None
LPI / SMA J1
Si4706-X-EVB Si4706 None None FMI / SMA J28 through C1.
Remove C9 for
best sensitivity
Unity Gain
Buffer / RCA
J6 (Baseboard) None None
LPI / SMA J1
Si4707-B-EVB Si4707 None None FMI / SMA J26 Unity Gain
Buffer / RCA
J6 (Baseboard) None None
Si4713-B-EVB* Si4713 None None LPI / SMA J1 None None Unity Gain
Buffer / RCA
J7
Si4721-B-EVB Si4721 None None FMI / SMA J28 through C1.
Remove C9 for
best sensitivity
Unity Gain
Buffer / RCA
J6 (Baseboard) Unity Gain
Buffer / RCA
J7
LPI / SMA J1
Si4731-X-EVB Si4731 AMI / SMA J1 through
C13, remove
C8 for best
sensitivity
FMI / SMA J26 through C3.
Remove C12 for
best sensitivity
Unity Gain
Buffer / RCA
J6 (Baseboard) None None
Si4735-X-EVB Si4735 AMI / SMA J1 through
C13, remove
C8 for best
sensitivity
FMI / SMA J26 through C3.
Remove C12 for
best sensitivity
Unity Gain
Buffer / RCA
J6 (Baseboard) None None
Si4737-X-EVB Si4737 AMI / SMA J1 through
C13, remove
C8 for best
sensitivity
FMI / SMA J26 through C3.
Remove C12 for
best sensitivity
Unity Gain
Buffer / RCA
J6 (Baseboard) None None
Si4743-C-EVB Si4743 AMI / BNC J4 FMI / BNC J4 Unity Gain
Buffer / RCA
J6 (Baseboard) None None
Si4749-C-EVB Si4749 None None FMI / SMA J2 None None None None
*Note: The FM RF output will be available through the SMA connector J1. Refer to Table 7.
Table 7. FM Band Attenuation Factors
Frequency (MHz) Attenuation (dB)
76 32.13
88 30.91
98 30
108 29.2