SI4133T-BM Silicon Laboratories Inc, SI4133T-BM Datasheet - Page 17

• Manufacturer Part Number: SI4133T-BM
• Description: IC RF SYNTHESIZER DUAL 28MLP
• Manufacturer: Silicon Laboratories Inc
• Type: Frequency Synthesizerr

Specifications of SI4133T-BM

• Pll: Yes
• Input: Clock
• Output: Clock
• Number Of Circuits: 1
• Ratio - Input:output: 1:2
• Differential - Input:output: No/No
• Frequency - Max: 1.8GHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Frequency-max: 1.8GHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

2. Typical Application Schematic
Notes:
RXQP
RXQN
SCLK
XOUT
TXQP
TXQN
RXIP
RXIN
SEN
PDN
SDO
XEN
TXIP
TXIN
XIN
SDI
1. Connect GND pad on bottom of U1–U3 to GND.
2. All VDD pins may be fed from a single supply or regulator.
3. For dual-band designs, the DCS LNA input pins (U1 pins 19–20) should be grounded. For a complete pinout, see "7. Pin
4. See “AN49: Aero Transceiver PCB Layout Guidelines” for details on the following:
LNA matching network (C1–C6, L1–L3). Values should be custom tuned for a specific PCB layout and SAW filter to
optimize performance.
Differential traces between the SAW filters (Z1–Z3) and transceiver (U1) pins 17–22.
Detailed SAW filter requirements.
L4 and PCB inductor traces L5–L6 for frequency synthesizer (U3) pins 2–3, 16–17 and 19–20.
CKP/CKN and IOP/ION differential traces between transceiver (U1) pins 1–4 and baseband interface (U2) pins 9–12.
Descriptions: Si4200DB-BM" on page 41.
C10
R1
C9
VDD
VDD
1
2
3
4
5
GND
RXQP
RXQN
RXIP
RXIN
C8
C7
C11
VDD
SI4201
U2
Figure 11. Typical Triple-Band Application Circuit
PDN
SDO
XEN
ION
IOP
L4
15
14
13
12
11
1
2
3
4
5
6
7
C12
C14
1
2
3
4
5
6
7
8
GND
IFLB
IFLA
GND
VDD
GND
XIN
VDD
VDD
ION
IOP
CKN
CKP
TXIP
TXIN
TXQP
TXQN
SI4133T
U3
SI4200
3 V
Rev. 1.4
U1
C13
RFLA
RFLB
RFLC
RFLD
GND
GND
GND
RFIGN
RFIGP
RFIDN
RFIDP
RFIPN
RFIPP
RFOD
VDD
VDD
21
20
19
18
17
16
15
VDD
24
23
22
21
20
19
18
17
VDD
L6
L5
L2
L3
L1
C1
C2
C3
C4
C5
C6
OUT-
OUT+
OUT-
OUT+
OUT-
OUT+
Z3
Z1
Z2
GND
GND
GND
IN
IN
IN
EGSM TX OUTPUT
DCS/PCS TX OUTPUT
Aero
EGSM RX INPUT
DCS RX INPUT
PCS RX INPUT
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