SI57X-EVB Silicon Laboratories Inc, SI57X-EVB Datasheet - Page 8

• Manufacturer Part Number: SI57X-EVB
• Description: MCU, MPU & DSP Development Tools Si570/Si571 Eval Board
• Manufacturer: Silicon Laboratories Inc

Specifications of SI57X-EVB

• Processor To Be Evaluated: Si570, Si571, C8051F320
• Interface Type: USB, I2C
• Operating Supply Voltage: 1.8 V to 3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Si57x-EVB
1.6. Si57x/598/599 I
The Si57x/598/599 supports I
are pin and register compatible, and all Si571 and Si599 VCXOs are pin and register compatible. The device can
be operated as an I
configured by jumpers as described below to select the intended I
DUT's nominal supply voltage.
For I
J2, and J11 pin 2. This defeats and bypasses the installed bidirectional voltage level translator at U3.
(For I
1.7. Si57x/598/599 Digital Control Signals
There is one normally static digital input control signal that routes to the Si57x/598/599: Output Enable or OE. By
default, the OE signal is pulled HIGH on the Si57x-EVB and may be pulled low by installing a jumper at J9.
To support OE active LOW control, make the following changes to the Si57x motherboard:


You can then selectively disable the OE active LOW by installing a jumper at J3. See Figure 4 for the location of
these components.
1.8. Si57x/598/599 Voltage Control Signal
An external voltage control signal may be applied to the control voltage modulation input at SMA connector J17,
silkscreen designation VC_MOD). This voltage supplies the control voltage or voltage modulation input to an Si571
when installed on the DB. No jumper changes are required to support the Si570/598 versus the Si571/599. Pin 1
on the Si571 is the V
8
Install R9.
Remove R14.
2
2
C communication with the Si57x/598/599 DUT = 2.5 or 3.3 V nominal, there must be jumpers installed at J1,
C communication with the Si57x/598/599 DUT at 1.8 V nominal supply, please consult the factory.)
2
C
C slave only. The MCU supports I
pin and is a N/C for the Si570.
2
C Communication Configuration
2
C serial communication through the SDA and SCL pins. All Si570 and Si598 XOs
Rev. 0.2
2
C communication to the DUT. The Si57x-EVB must be
2
C communications path depending on the