SKY73134 Datasheet, PDF (1/17 Pages) Skyworks Solutions Inc. – Wideband PLL Frequency Synthesizer

PRELIMINARY DATA SHEET
SKY73134: Wideband PLL Frequency Synthesizer
Applications
x Cellular base station systems: GSM/EDGE, CDMA2000, WCDMA,
TD-SCDMA, LTE
x Other wireless communication systems
Features
x Output frequency range: 0.375 to 5.6 GHz
x Integer-N frequency synthesizer
x Low phase noise VCO
x Four integrated VCOs with automatic digital frequency
calibration
x Automatic VCO selection based on the target RF output
x Programmable VCO division by 1, 2, 3, 4, or 8
x VCO divide-by-three with 50% duty cycle
x Integrated input/output RF buffer
x Device provides both divided and direct VCO outputs
x Programmable RF output power levels
x Low RF output comparison spurs
x Programmable 18-bit N-counter and 11-bit R-counter
x Dual modulus 7 GHz prescaler (64/65)
x Programmable charge pump current
x Flexible configuration allows connection to external VCO or PLL
x Bidirectional read/write three-wire serial to parallel interface
x Digital lock detect
x Digital output used as a loop filter component switch
x Optional adjustment of the core, divider, and charge pump
current by external resistor
x Power supply: 3.3 V
x Small, RFLGA (32-pin, 5 x 5 mm) package (MSL3, 260 qC per
JEDEC J-STD-020)
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances) compliant packaging.
Description
The SKY73134 is a wideband integer-N frequency synthesizer
with an approximately 6 GHz locking range.
The device includes four differential Voltage Controlled Oscillators
(VCOs), which cover the output frequency range from 2.8 GHz to
5.6 GHz. By applying internal VCO division by 1, 2, 3, 4, or 8, the
output frequency range can be increased from 0.375 GHz to
5.6 GHz, monitored at the RF output.
The direct, non-divided internal VCO frequency can also be
monitored at the bidirectional VCO pins. The VCO selection can be
automatic based on the target RF output. The flexible SKY74134
configuration allows the loop to be locked by an external VCO or
external Phase Locked Loop (PLL), or the device can use the
divider chain only. The SKY73134 is controlled by a bidirectional
read/write serial to parallel interface.
The SKY73134 frequency synthesizer is manufactured with a
BiCMOS 0.18 μm SiGe process and provided in a compact,
32-pin RF Land Grid Array (RFLGA). The pin configuration and
package are shown in Figure 1. A functional block diagram is
shown in Figure 2. Signal pin assignments and functional pin
descriptions are provided in Table 1.
VCC_VCO 1
VCC_CAP 2
VCO_RES ³
OUT_BUFP ⁴
OUT_BUFN 5
VCC_OBUF 6
DIV_CAP 7
DIV_RES 8
VCC_DIV ⁹
32 31 30 29 28 27 26
10 11 12 13 14 15 16
25 CLK
24 DATA
23 _LE
22 _{EXT_VCON}
21 EXT_VCOP
20 PLL_RES
19 REF_CLK
18 GND_REF
17 _{VCC_REF}
S1839
Figure 1. SKY73134 Pinout – 32-Pin RFLGA
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
201199A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 15, 2009
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