SKY74067-21 Datasheet, PDF (4/10 Pages) Skyworks Solutions Inc. – Dual-Band CDMA2000 Transmitter for Cellular CDMA and PCS Femtocell Applications

DATA SHEET • SKY74067-21 CDMA2000 TRANSMITTER
Table 1. SKY74067-21 Signal Descriptions
Pin #
Name
Description
1
LD_OUT
Lock detect output. Open drain.
2
VCC_PLL_1
Supply for the PLL.
Pin #
Name
17 VCC_RF_1
18 TX_ENABLE
3
N/C
4
CP
5
VCC_PLL_2
6
VCO_IO
7
VCO_TUNE
No connection
Charge pump output.
Supply for the PLL.
Input/output port for the VCO bi-
directional buffer.
Loop filter input for the VCO.
19 CELL_OUT+
20 CELL_OUT–
21 VCC_RF_2
22 PCS_OUT
23 VCC_RF_3
8
VCO_EXT_RES
External bias-setting resistor for the VCO.
24 VCC_RF_4
9
VCO_BYPASS
External capacitor for VCO noise filtering.
25 BIAS_RES
10 VCC_VCO_CORE
11 VCC_LO
Supply for the VCO.
Supply for LO generation blocks.
26 CS
27 Q+
12 VCC_INTERFACE
Supply for serial bus.
28 Q–
13 CLK
14 LATCH_ENABLE
15 DATA
16 GAIN_CTRL
Clock signal for serial bus.
Latch enable signal for serial bus.
Data signal for serial bus.
Gain control voltage.
29 I+
30 I–
31 VCC_CLK
32 REF
Description
Supply for bias circuits of all drivers.
Transmit enable/disable pin for all blocks,
excluding VCO and PLLs.
Positive cellular driver differential output.
Negative cellular driver differential output.
Supply for PCS and cellular output drivers.
PCS driver output.
Supply for bias circuits of the PCS
differential driver.
Supply for the mixer and associated bias
blocks.
External bias resistor for all blocks,
excluding VCO.
Current sink.
Positive quadrature analog baseband
input.
Negative quadrature analog baseband
input.
Positive in-phase analog baseband input.
Negative in-phase analog baseband input.
Supply for the TCXO buffer.
TCXO input.
Table 2. SKY74067-21 Absolute Maximum Ratings
Parameter
Symbol
Minimum
Typical
Maximum
Units
Supply voltage
VCC
–0.3
+3.6
V
Input voltage range
VIN
–0.3
VCC
V
Storage temperature
TSTG
–40
+125
°C
Ambient operating temperature
TA
–30
+85
°C
Note: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal value.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
4
April 13, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 200803A