SI4709-B-GM Silicon Laboratories Inc, SI4709-B-GM Datasheet - Page 10

• 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

Si4708/09-B
Table 7. FM Receiver Characteristics
(V
10
Parameter
Input Frequency
Sensitivity
Sensitivity (50  matching
network)
RDS Sensitivity
LNA Input Resistance
LNA Input Capacitance
Input IP3
AM Suppression
Adjacent Channel Selectivity
Alternate Channel Selectivity
Spurious Response Rejection
RCLK Frequency
RCLK Frequency Tolerance
Audio Output Voltage
Audio Output L/R Imbalance
Audio Frequency Response Low
Audio Frequency Response High
Audio Stereo Separation
Notes:
D
= V
1. Additional testing information is available in Application Note AN388. Volume = maximum for all tests.
2. Important Note: To ensure proper operation and FM receiver performance, follow the guidelines in “AN350: Si4708/09
3. F
4. MONO = 1, and L = R unless noted otherwise.
5. f = 22.5 kHz.
6. B
7. Typical sensitivity with headphone matching network.
8. Guaranteed by characterization.
9. V
10. |f
11. The channel spacing is selected with the SPACE[1:0] bits. Refer to "6. Register Descriptions" on page 20. Seek/Tune
12. f = 75 kHz.
13. The de-emphasis time constant is selected with the DE bit. Refer to "6. Register Descriptions" on page 20.
14. At LOUT and ROUT pins.
15. Do not enable STC interrupts before the powerup time is complete. If STC interrupts are enabled before the powerup
16. Minimum and maximum at room temperature (25 °C).
A
Antenna, Schematic, Layout, and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for
qualified customers.
20.
timing is guaranteed for 100 and 200 kHz channel spacing. ±50 ppm PCLK tolerance required for 50 kHz channel
spacing.
time is complete, an interrupt will be generated within the powerup interval when the initial default tune operation is
complete. See "AN349: Si4708/09 Programming Guide" for more information.
= 2.7 to 5.5 V, V
MOD
2
AF
EMF
3,4,5,6,8
8,10
– f
3,4,5,6,7
= 300 Hz to 15 kHz, A-weighted.
1
= 1 mV.
= 1 kHz, 75
| > 1 MHz,
8
3,4,5,8,9
3,4,5,9
8,9
IO
f
0
µ
8,9
s de-emphasis
= 1.5 to 3.6 V, T
3,9,12
= 2 x f
11
3,4,9,12
8
1
– f
8
8
2
. AGC
A
Symbol
= –20 to 85 °C)
1,2
f
is disabled by setting AGCD = 1. Refer to "6. Register Descriptions" on page
RF
Confidential Rev. 1.4
SPACE[1:0] = 00 or 01
RDS BLER < 5%
SPACE[1:0] = 10
(S+N)/N = 26 dB
(S+N)/N = 26 dB
Test Condition
f = 2 kHz,
±200 kHz
±400 kHz
In-band
m = 0.3
–3 dB
–3 dB
–200
Min
104
–50
76
40
35
60
35
—
72
15
25
—
—
—
—
—
3
4
32.768
Typ
106
1.7
1.1
—
15
55
50
70
—
—
—
80
—
—
—
—
4
5
Max
108
200
3.5
50
90
30
—
—
—
—
—
—
—
—
—
—
5
6
1
dBµVEMF
µVEMF
µVEMF
µVEMF
mV
MHz
Unit
ppm
kHz
kHz
k
dB
dB
dB
dB
dB
Hz
dB
pF
RMS