SI4735-B20GM Silicon Laboratories Inc, SI4735-B20GM Datasheet - Page 7

• Manufacturer Part Number: SI4735-B20GM
• Description: RECEIVER, RADIO, MULTIBAND, 20QFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4735-B20GM

• Frequency Range: 520kHz To 21.85MHz
• Rf Ic Case Style: QFN
• No. Of Pins: 20
• Supply Voltage Range: 2.7V To 5.5V
• Applications: Audio Video Receivers, CD/DVD Players, Cellular Handsets, Emergency Radios
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 4. Reset Timing Characteristics
(V
Parameter
RST Pulse Width and GPO1, GPO2/INT Setup to RST
GPO1, GPO2/INT Hold from RST
Important Notes:
DD
1. When selecting 2-wire mode, the user must ensure that a 2-wire start condition (falling edge of SDIO while SCLK is
2. When selecting 2-wire mode, the user must ensure that SCLK is high during the rising edge of RST, and stays high until
3. If GPO1 and GPO2 are actively driven by the user, then minimum t
= 2.7 to 5.5 V, V
high) does not occur within 300 ns before the rising edge of RST.
after the first start condition.
minimum t
GPO2 low.
SRST
IO
is 100 µs to provide time for on-chip 1 M devices (active while RST is low) to pull GPO1 high and
= 1.5 to 3.6 V, T
Figure 1. Reset Timing Parameters for Busmode Select
GPO2/
GPO1
A
RST
= –20 to 85 °C)
INT
70%
30%
70%
30%
70%
30%
1,2
Rev. 0.5

t
SRST
Symbol
t
t
HRST
SRST
t
HRST
SRST
is only 30 ns. If GPO1 or GPO2 is hi-Z, then
Min
100
30
Typ
—
—
Si473x-B20
Max
—
—
Unit
µs
ns
7