SI3012 ETC, SI3012 Datasheet - Page 15

• Manufacturer Part Number: SI3012
• Description: 3.3 V FCC/JATE DIRECT ACCESS ARRANGEMENT
• Manufacturer: ETC

RESETb
FSYNCb
RGDTb
OFHKb
C10
Note 1: R3 is not required when Vcc=3.3 V and the charge pump is
enabled (CPE = 1).
Note 2: If JATE support is not required, R21, C12 and C23
may be removed (R21 is effectively 0 ohms) and R4 should
be changed to a 604 ohm, 1/4 W, +- 1%.
Note 3: See Appendix for applications requiring UL 1950
3rd Edition compliance.
VCC
MCLK
SCLK
AOUT
SDO
SDI
FC
M0
M1
Decoupling cap for U1 VD
1
2
3
4
5
6
7
8
MCLK
FSYNC
SCLK
VD
SDO
SDI
FC
RESET
R3
10
SOIC Pinout
Si3021
U1
C3
Decoupling cap for U1 VA
OFHK
RGDT
AOUT
GND
C1A
M0
VA
M1
Z4
16
15
14
13
12
11
10
9
R27
D3
BAV99
C30
C1
C2
C4
No Ground Plane In DAA Section
R28
D4
BAV99
Figure 16. Typical Application Schematic
Z5
1
2
3
4
5
6
7
8
TSTA
TSTB
IGND
C1B
RNG1
RNG2
QB
QE
U2
Si3012
VREG2
HYBD
VREG
REXT
NC2
DCT
RX
TX
16
15
14
13
12
11
10
9
R23
R22
C6
C16
C12
C11
R4
R2
C8
C7
C5
C23
+
R1
R9
R21
R10
R18
Z1
R5
Q1
C9
RV2
D2
D1
Q2
Q3
C20
R6
C25
C24
FB2
FB1
RV1
C32
C31
TIP
RING