si4704 Silicon Laboratories, si4704 Datasheet - Page 6

• Manufacturer Part Number: si4704
• Description: Broadcast Fm Radio Receiver For Consumer Electronics
• Manufacturer: Silicon Laboratories

Si4704/05-C40
Table 4. Reset Timing Characteristics
(V
6
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. When selecting 3-wire or SPI modes, the user must ensure that a rising edge of SCLK does not occur within 300 ns
4. 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.
before the rising edge of RST.
impedance, then minimum t
GPO1 high and GPO2 low.
IO
= 1.85 to 3.6 V, T
Figure 1. Reset Timing Parameters for Busmode Select
SRST
GPO2/
GPO1
A
RST
is 100 µs to provide time for on-chip 1 M devices (active while RST is low) to pull
INT
= –20 to 85 °C)
70%
30%
70%
30%
70%
30%
1,2,3
Rev. 1.0

t
SRST
Symbol
t
t
HRST
SRST
t
HRST
SRST
is only 30 ns. If GPO1 or GPO2 is high
Min
100
30
Typ
—
—
Max
—
—
Unit
µs
ns