Si4720-A10-GM Silicon Laboratories Inc, Si4720-A10-GM Datasheet - Page 16

• Manufacturer Part Number: Si4720-A10-GM
• Description: RF Transceiver Broadcast FM Radio Transceiver
• Manufacturer: Silicon Laboratories Inc

Specifications of Si4720-A10-GM

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

Table 10. FM Transmitter Characteristics
Test conditions: V
unless otherwise specified.
Production test conditions: V
Characterization test conditions: V
All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions.
Typical values apply at V
Parameters are tested in production unless otherwise specified.
Si4720/21-B20
16
Audio THD Stereo
Audio Stereo Separation
Sub Carrier Rejection Ratio
Powerup Settling Time
Input Signal Level
Frequency Flatness
High Pass Corner Frequency
Low Pass Corner Frequency
Audio Imbalance
Pilot Modulation Rate Accuracy
Audio Modulation Rate Accuracy
Input Resistance
Input Capacitance
Received Noise Level Accuracy
(Si4720/21 Only)
Notes:
1. FM transmitter performance specifications are subject to adherence to Silicon Laboratories guidelines in “AN383:
2. Guaranteed by characterization.
3. No measurable ΔfRF/ΔV
Universal Antenna Selection and Layout Guidelines.” Silicon Laboratories will evaluate schematics and layouts for
qualified customers. Tested with test schematic (L = 120 nH, Q > 30) shown in Figure 10 on page 19.
Parameter
RF
2
2
= 118 dBµV, stereo, Δf = 68.25 kHz, Δfpilot = 6.75 kHz, REFCLK = 32.768 kHz, 75 µs pre-emphasis,
2
2
2
2
DD
2
= 3.3 V and 25 °C unless otherwise stated.
2
DD
= 3.3 V, V
DD
2
2
DD
2
at ΔV
2
= 2.7 to 5.5 V, V
DD
IO
Symbol
= 3.3 V, T
of 500 mVpk-pk at 100 Hz to 10 kHz.
SCR
V
AI
1
IO
A
(Continued)
0, 50, 75 µs pre-emphasis,
0, 50, 75 µs pre-emphasis,
Mono, –3 dB, Δf = 75 kHz,
Mono, –3 dB, Δf = 75 kHz,
60 dBµV input, T
Δfpilot = 6.75 kHz, Stereo,
= 25 °C, F
Δfpilot = 6.75 kHz, Stereo
Δfpilot = 6.75 kHz, Stereo
Δf = 75 kHz, 0, 50, 75 µs
= 1.5 to 3.6 V, T
pre-emphasis, limiter off
Rev. 1.0
LIATTEN[1:0] = 11
left channel only
Test Condition
Mono, ±1.5 dB,
Δf = 68.25 kHz,
Δf = 68.25 kHz,
Δf = 22.5 kHz,
limiter off
limiter off
limiter off
RF
Mono
= 98 MHz.
A
= –20 to 85 °C, F
A
= 25 ºC
15 k
Min
–10
–10
40
30
30
–1
50
—
—
—
—
—
5
RF
= 76–108 MHz.
Typ
0.1
35
50
60
10
54
—
—
—
—
—
—
—
—
0.636
Max
15 k
16 k
110
0.5
30
10
10
—
—
—
—
—
1
dBuV
Unit
V
ms
dB
dB
Hz
Hz
Hz
dB
kΩ
pF
%
%
%
PK