SKYWORKS SKY73101-11

PRELIMINARY DATA SHEET
SKY73101: 1800-1990 MHz High Performance
VCO/Synthesizer With Integrated Switch
Applications
Description
• 2G, 2.5G, and 3G base station transceivers:
− GSM, EDGE, CDMA, WCDMA
Skyworks SKY73101 Voltage-Controlled Oscillator
(VCO)/Synthesizer is a fully integrated, high performance signal
source for high dynamic range transceivers. The device provides
ultra-fine frequency resolution, fast switching speed, and low
phase noise performance for 2G, 2.5G, and 3G base station
transceivers.
• General purpose RF systems
Features
The SKY73101 VCO/Synthesizer is a key building block for highperformance radio system designs that require low power and a
fine step size. Reference clock generators with an output
frequency up to 52 MHz can be used with the SKY73101. The
input clock frequency is divided down by programmable dividers
(1 to 8) for the synthesizer. The phase detector can operate at a
maximum speed of 26 MHz, which allows better phase noise due
to the lower division value.
• Wideband frequency operation: 1800 to 1990 MHz
• Process-tolerant compensation for VCO
• 24-bit Σ∆ fractional-N synthesizer
• Ultra-fine frequency resolution of 0.001 ppm
• Flexible reference frequency selection
• Three-wire serial interface up to 20 MHz clock frequency
The SKY73101 VCO/Synthesizer is provided in a compact, 38-pin
Multi-Chip Module (MCM). The device package and pinout 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.
• Integrated PLL supply regulation for spur isolation
• MCM (38-pin, 9 x 12 mm) Pb-free free (MSL3, 260 °C per
JEDEC J-STD-020) SMT package
GND
GND
35
34
33
32
31
GND
N/C
36
GND
37
GND
GND
38
VDD
GND
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances) compliant packaging.
30
N/C
SW_EN
4
26
GND
GND
5
25
GND
GND
6
24
GND
GND
7
23
FREF
GND
8
22
LD
GND
9
21
N/C
RF_OUT
10
20
GND
GND
11
12
13
14
15
16
17
18
19
LE
27
DATA
3
CLK
GND
GND
GND
28
N/C
2
GND
GND
GND
29
GND
GND
1
GND
S958
Figure 1. SKY73101 Pinout– 38-Pin MCM Package
(Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200724A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 20, 2007
1
Vtune
Varactor
PRELIMINARY DATA SHEET • SKY73101 VCO/SYNTHESIZER
Z = 1:4
VCO Out +
Lr
Cal
2
Lr
2
2
Buffer
RF Output
VCO Out –
SW_EN
SR Out +
7
SR Out –
2
Vtune
cap [6:0]
PLL
Low Pass Filter
Flag
FREF
SP1
SC1
R1
Divider
RF
PFD
RF Charge
Pump
CLK
LE
DAT
3-Wire
Serial
Interface
CPO RF
R1
N
PS
RFIN
P/P+1
Prescaler
N
Divider
7
RFINB
Mux
(LD/Test)
LD
FN
ΔΣ
Modulator
Divide-by-2
ME
Digital
Coarse
Calibration
cap [6:0]
7
Calibration
Complete
S1040
Figure 2. SKY73101 Functional Block Diagram
Table 1. SKY73101 Signal Descriptions
Pin #
Name
Description
Pin #
Name
Description
1
GND
Ground
20
GND
Ground
2
GND
Ground
21
N/C
No connection
3
GND
Ground
22
LD
Lock detect output
4
SW_EN
Synthesizer RF output switch enable
23
FREF
Frequency reference input
5
GND
Ground
24
GND
Ground
6
GND
Ground
25
GND
Ground
7
GND
Ground
26
GND
Ground
8
GND
Ground
27
N/C
No connection
9
GND
Ground
28
GND
Ground
10
RF_OUT
Synthesizer output
29
GND
Ground
11
GND
Ground
30
GND
Ground
12
GND
Ground
31
GND
Ground
13
GND
Ground
32
GND
Ground
14
N/C
No connection
33
N/C
No connection
15
GND
Ground
34
GND
Ground
16
GND
Ground
35
GND
Ground
17
CLK
Serial port clock
36
GND
Ground
18
DATA
Serial port data
37
VDD
+5 V power supply
19
LE
Serial port latch enable
38
GND
Ground
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June 20, 2007 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 200724A
PRELIMINARY DATA SHEET • SKY73101 VCO/SYNTHESIZER
Technical Description
The SKY73101 is a fractional-N frequency synthesizer using a
Σ∆ modulation technique. The fractional-N implementation
provides low in-band noise by having a low division and fast
frequency settling time. The device also provides programmable,
arbitrary fine frequency resolution. This compensates the
frequency synthesizer for crystal frequency drift.
Serial I/O Control Interface
The SKY73101 is programmed through a three-wire serial bus
control interface using four 26-bit words. The three-wire interface
consists of three signals: CLK (pin 17), LE (pin 19), and the bit
serial data line DATA (pin 18). The convention is to load data from
the most significant bit to the least significant bit (MSB to LSB). A
serial data input timing diagram is shown in Figure 3. Preset
timing parameter values are provided in Table 2.
Figure 4 depicts the serial bus, which consists of one 26-bit load
register and four separate 24-bit registers. Data is initially clocked
into the load register starting with the MSB and ending with the
LSB. The LE signal is used to gate the clock to the load register,
requiring the LE signal to be brought low before the data load.
Data is shifted on the rising edge of CLK.
The two final LSBs are decoded to determine which holding
register should latch the data. The falling edge of LE latches the
data into the appropriate holding register. This programming
sequence must be repeated to fill all four holding registers.
Loading new data into a holding register not associated with the
synthesizer frequency programming does not reset or change the
synthesizer. The synthesizer should not lose lock before, during,
or after a new serial word load that does not change the
programmed frequency.
VCO Tuning Loop
A VCO auto-tuning loop provides the proper 7-bit coarse tuning
setting for the VCO switch capacitors in the VCO output. This sets
the oscillation frequency as close to target as possible before
starting fine analog tuning.
The auto-tuning loop is designed to compensate process variation
so that the VCO fine tuning range can be reduced to cover
temperature variation only. It significantly reduces VCO gain (Kv)
which reduces VCO phase noise.
DATA
tDHD
tDSU
tCKH
tCKL
CLK
tCLE
tLEC
tLEW
LE
S1053
Figure 3. SKY73101 Serial Data Input Timing Diagram (MSB First)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200724A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 20, 2007
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PRELIMINARY DATA SHEET • SKY73101 VCO/SYNTHESIZER
Table 2. CLK, DATA, LE Preset Timing Parameters
Parameter
Value
Input high voltage (VIH)
1.6 V
Input low voltage (VIL)
0.3 V
Input current (lDIG)
1 µA (maximum)
Clock frequency
15 MHz (maximum)
Clock high (tCKH)
15 ns (minimum)
Clock low (tCKL)
15 ns (minimum)
Data set up (tDSU)
20 ns (minimum)
Data hold (tDHD)
10 ns (minimum)
Clock to latch enable (tCLE)
20 ns (minimum)
Latch enable width (tLEW)
15 ns (minimum)
Latch enable to clock (tLEC)
15 ns (minimum)
Word length
26 bits
Number of words
4
Current drain
2 µA
Power-On
Preset
CLK
DATA
Load
Register
Bits [25:2]
(Words 0-3, bits [25:0])
Operation
Mode
Register
Word 0
Bits [25:2]
Latch
Auto
Calibration
Control
Register
Word 1
Bits [25:2] Frequency
Latch
Word 2
Bits [25:2]
Control 1
Register
Latch
Frequency
Control 2
Register
Word 3
Bits [25:2]
Latch
Words 0-3
Bits [1:0]
LE
2 LSB Decode
(Register Address,
Bits [1:0])
S918
Figure 4. Serial Bus Block Diagram
VCO Prescalers
VCO MFD Block
The VCO prescalers divide the VCO output signal by either 16/17
or 8/9. The Σ∆ modulator determines whether to divide by 16 or
17 in the 16/17 mode, or whether to divide by 8 or 9 in the 8/9
mode.
The MFD block divides down the prescaler output to the Phase
Locked Loop (PLL) reference frequency. A third order cascaded
Σ∆ modulation technique minimizes spurs through randomization
of the division ratio.
N-Counter
The MFD block controls the division ratio by dynamically
programming the M and A counters in the N-counter.
The N-counter consists of two asynchronous ripple counters, a
6-bit M-counter and a 4-bit A-counter. The M-counter determines
the counts using the lower division ratio in the prescaler (8 or 16);
the A-counter determines the counts using the upper division ratio
(9 or 17).
By changing the counter setting at each reference clock cycle, the
Modulated Fractional Divider (MFD) achieves the desired noise
shaping.
Phase Detector and Charge Pump
The phase detector and charge pump detect and integrate the
phase and frequency errors of the divided down VCO output
versus the reference clock. This results in a feedback adjustment
of the control voltage for the VCO.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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June 20, 2007 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 200724A
PRELIMINARY DATA SHEET • SKY73101 VCO/SYNTHESIZER
Nactual = Mactual × P + Aactual
Lock Detect
Lock detection circuitry provides a CMOS logic level indication
when the PLL is frequency locked (high when locked).
If:
M = Mactual (binary number, fit to six bits)
A = Aactual (binary number, fit to four bits)
Then: N = M × 24 + A
Reference Input Divider
The R-counter (reference input clock divider) consists of three
divide-by-two blocks and one multiplexer controlled by the
RDIV[1:0] parameter in Legacy Word 2. The R-counter is used to
select a divide-by-one to a divide-by-eight function.
Synthesizer Output Switch
An on-chip switch is integrated into the SKY73101 RF output after
the balun and is controlled by the SW_EN signal (pin 4) as
indicated below:
SW_EN Input
Synthesizer Output
High
On
Low
Off
Where: N is the number to be programmed into the N-counter.
The synthesizer has a selectable prescaler of 8/9 or 16/17. If the
16/17 prescaler is used:
P = 24 = 16
In this case, N is the same as Nactual, M is equal to the six MSBs of
Nactual, and A is equal to the four LSBs of Nactual.
If the 8/9 prescaler is used:
P=8
Here, N is not equal to Nactual. The A-counter portion only uses the
three LSBs (the 4th bit of the A-counter is a “don’t care” bit).
The fractional divisor code (FN) sets the fractional-N modulo up to
256 modulo according to the following equation:
The switch provides >50 dB isolation at the synthesizer RF
output. This allows the SKY73101 to be used for GSM
applications.
⎛ 1 ⎞
⎛ 1 ⎞
⎛1⎞
FN actual = D7 ⎜⎜ ⎟⎟ + D6 ⎜⎜ 2 ⎟⎟ + D5 ⎜⎜ 3 ⎟⎟ +
2
2
⎝ ⎠
⎝
⎠
⎝2 ⎠
• • •
⎛ 1 ⎞
+ D0 ⎜⎜ 8 ⎟⎟
⎝2 ⎠
(4)
The value of FN is equal to the binary representation of 256 (or 28)
× FNactual, or:
Synthesizer Programming
To program the synthesizer to the correct frequency, values for
the N-counter (both M and A portions), fractional divisor (FN), and
fractional modulus extender (ME) are needed. These values are
used to determine the total divider ratio, DTotal, according to
Equation 1:
DTotal = Nactual + FNactual + MEactual + 3.5
(1)
FNactual = the actual fractional divisor
Because of the way the ∆Σ modulator is implemented in the
SKY73103, the number 3.5 must be added to the division number
to obtain the final division ratio.
The calculated value for DTotal can then be used to determine the
correct synthesizer frequency, RF:
Where: FREF = the reference frequency
R1 = the reference divider radio
The 6-bit M-counter and the 4-bit A-counter portions of the Ncounter are calculated according to the following relationships:
Nactual is the actual N-counter value and is the integer portion of
(DTotal – 3.5):
The fractional modulo can be extended up to 223 using the modulo
extender (ME) if required:
MEactual = D14(1/29) + D13(1/210) + D12(1/211) + . . . + D0(1/223)
ME = D14 × 214 + D13 × 213 + D12 × 212 + . . .D0
MEactual = the actual fractional modulus extender
FREF
× DTotal
R1
FN = D7 × 27 + D6 × 26 + D5 × 25+ . . . D0
The value of ME is equal to the binary representation of the
integer part of 223 × MEactual, or:
Where: Nactual = the actual value of the N-counter
RF =
(3)
(2)
Example 1:
A desired synthesizer frequency of 2640.45 MHz is required using
a crystal frequency of 16 MHz and a 16/17 prescaler. Since the
maximum internal reference frequency is 25 MHz, the crystal
frequency does not need to be divided. However, a reference
divider ratio of 2 is used for this example.
Restating Equation 2 as a function of DTotal:
DTotal = (2640.45 × 2)/16 = 330.05625
Where: RF = 2640.45
R1 = 2
FREF = 16
Determine Nactual by subtracting 3.5 from DTotal and removing the
fractional portion:
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200724A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 20, 2007
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PRELIMINARY DATA SHEET • SKY73101 VCO/SYNTHESIZER
DTotal – 3.5 = 326.55625
Using Equation 3:
Nactual = 108 = Mactual × P + Aactual
Using Equation 3:
Nactual = 326 = Mactual × P + Aactual
Where: Mactual = 20
Where: Mactual = 13
P=8
Aactual = 4
P = 16
Aactual = 6
M = Mactual = 20 = 010100b (the six MSBs)
M = Mactual = 13 = 001101b (the six MSBs)
A = Aactual = 6 = 0110b (the four LSBs)
A = Aactual = 4 = 0100b (the four LSBs)
N = M × 2 + A = 0101000110b (this is the same as Nactual)
N = M × 24 + A = 0011010100b (the value programmed)
Multiply the fractional portion that was removed in the previous
step by 256 and remove the fractional portion of the result to
determine FN:
Multiply the fractional portion that was removed in the previous
step by 256 and remove the fractional portion of the result to
determine FN:
0.55625 × 256 = 142.4
0.038461538 × 256 = 9.846153728
FN = 142 = 10001110b
FN = 9 = 00001001b
Divide FN by 256 to determine the actual fractional part, FNactual:
Divide FN by 256 to determine the actual fractional part, FNactual:
FNactual = 142/256 = 0.5546875
FNactual = 9/256 = 0.03515625
Subtract this result from the fractional portion of (DTotal – 3.5) to
determine the actual fractional modulus extender, MEactual:
Subtract this result from the fractional portion of (DTotal – 3.5) to
determine the actual fractional modulus extender, MEactual:
MEactual = (DTotal – 3.5 – Nactual) – FNactual
MEactual = (DTotal – 3.5 – Nactual) – FNactual
4
= 0.55625 – 0.5546875
= 0.038461538 – 0.03515625
= 0.0015625
= 0.003305288
Multiply this result by 8388608 (the 23-bit ∆Σ modulator value,
223) and remove the fractional portion to determine the value of
ME:
Multiply this result by 8388608 (the 23-bit ∆Σ modulator value,
223) and remove the fractional portion to determine the value of
ME:
0.0015625 × 8388608 = 13107.2
0. 003305288 × 8388608 = 27726.7653
ME = 13107 = 011001100110011b
ME = 27726 = 110110001001110b
Example 2:
Package and Handling Information
A desired synthesizer frequency of 725 MHz is required using a
crystal frequency of 13 MHz and an 8/9 prescaler. Since the
maximum internal reference frequency is 25 MHz, the crystal
frequency does not need to be divided. However, a reference
divider ratio of 2 is used for this example.
Since the device package is sensitive to moisture absorption, it is
baked and vacuum packed before shipping. Instructions on the
shipping container label regarding exposure to moisture after the
container seal is broken must be followed. Otherwise, problems
related to moisture absorption may occur when the part is
subjected to high temperature during solder assembly.
Restating Equation 2 as a function of DTotal:
DTotal = (725 × 2)/13 = 111.538461538
Where: RF = 725
R1 = 2
FREF = 13
Determine Nactual by subtracting 3.5 from DTotal and removing the
fractional portion:
DTotal – 3.5 = 108.038461538
The SKY73101 is rated to Moisture Sensitivity Level 3 (MSL3) at
260 °C. It can be used for lead or lead-free soldering. For
additional information, refer to Skyworks Application Note, PCB
Design and SMT Assembly/Rework Guidelines for MCM-L
Packages, document number 101752.
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
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June 20, 2007 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 200724A
PRELIMINARY DATA SHEET • SKY73101 VCO/SYNTHESIZER
Electrical and Mechanical Specifications
tape and reel format. For packaging details, refer to the Skyworks
Application Note, Tape and Reel, document number 101568.
The absolute maximum ratings of the SKY73101 are provided in
Table 3. The recommended operating conditions are specified in
Table 4 and electrical specifications are provided in Table 5. Spur
suppression measurements are provided in Table 6.
Measurement plots for single sideband phase noise and settling
time are shown in Figures 5 and 6, respectively.
Circuit Design Considerations
The following design considerations are general in nature and
must be followed regardless of final use or configuration
1. Paths to ground should be made as short and as low
impedance as possible.
A typical application schematic for the SKY73101 is provided in
Figure 7. Figure 8 shows the package dimensions for the 38-pin
MCM and Figure 9 provides the tape and reel dimensions.
2. The ground pad of the SKY73101 provides critical electrical
grounding requirements. Design the connection to the ground
pad to provide the best electrical connection to the circuit
board. Multiple vias to the grounding layer are recommended
to connect the top layer ground area to the main ground layer.
Electrostatic Discharge (ESD) Sensitivity
The SKY73101 ESD threshold level is 2500 VDC using Human
Body Model (HBM) testing. This level applies to RF signal lines
>100 MHz, analog and RF lines <100 MHz, digital lines, power
supply lines, and ground pins.
3. Skyworks recommends including external bypass capacitors
on the VDD voltage input (pin 37) of the device. These
capacitors should be placed as close as possible to the VDD
input pin.
To avoid latent or visible ESD damage, always follow proper ESD
handling precautions.
4. A 50 Ω impedance trace is needed for the RF_OUT (pin 10)
line.
Table 3. SKY73101 Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Min
Typical
Max
Units
Supply voltage
VCC
0
5.5
V
Operating temperature, full performance
TOP
–40
+85
°C
Storage temperature
TST
–40
+150
°C
Note 1: 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 values.
Table 4. SKY73101 Recommended Operating Conditions
Parameter
Supply voltage
Symbol
VCC
Min
Typical
Max
Units
4.75
5.00
5.25
V
0.6
V
V
0.4
V
V
1.5
Vp-p
Input voltage (CLK, DATA, LE):
Low level
High level
1.4
Output voltage (LD) with 18 kΩ load from
VCC PLL:
Low level, unlocked
High level, unlocked
2.4
Reference frequency input voltage (FREF,
pin 23)
FREFIN
0.5
50 Ω, maximum VSWR (load input) 2.0:1, all phases
Load connected to RF output
RF output switch enable:
High
Low
1.0
SWENH
SWENL
4.75
0
5.25
0.8
V
V
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200724A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 20, 2007
7
PRELIMINARY DATA SHEET • SKY73101 VCO/SYNTHESIZER
Table 5. SKY73101 Electrical Characteristics (Note 1)
(VCC = 5 V, TC = 25 °C, Charge Pump Current = 1600 µA, FREF = 52 MHz, Reference Input Divider = 8, Prescale Divider = 8/9, Unless
Otherwise Noted)
Parameter
Symbol
Test Conditions
Min
Oscillation frequency
Typical
1800
Max
Units
1990
MHz
52
MHz
Reference frequency
13
Phase detector frequency
6.5
MHz
PLL loop bandwidth
25
kHz
Output level
0
dBm
Output impedance
50
Output VSWR
Ω
*** TBD ***
Reference frequency input (FREF)
impedance
–
Ω
470
Harmonic suppression
Integrated phase noise
–20
dBc
1
degrees RMS
100 Hz to 100 kHz
Single sideband phase noise offset:
@ 1 kHz
@ 5 kHz
@ 10 kHz
@ 200 kHz
@ 400 kHz
@ 600 kHz
@ 800 kHz
@ 1.8 MHz
@6 MHz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
–87
–87
–87
–112
–130
–136
–139
–146
–158
PLL-reference spurious suppression
–100
Frequency settling time
Within ±2 kHz
250
Phase settling time
Within ±5 deg
300
µs
530
µs
5
degrees
Peak phase error
Current consumption
dBc
120
mA
Note 1: Characterized performance may change if the SKY73101 is configured differently than the test conditions specified here. This characterization used a 6.5 MHz fixed comparison
frequency for the PLL phase loop filter. The PLL synthesizer is programmable up to a maximum comparison frequency of 26 MHz but with degraded performance.
Table 6. SKY73101 Spur Suppression Measurements
(VCC = 5 V, TC = 25 °C, Charge Pump Current = 1600 µA, FREF = 52 MHz, Reference Input Divider = 8, Prescale Divider = 8/9)
Frequency (MHz)
Spurious Power (kHz)
1800
1840
1880
1930
1960
1990
≥ 200
No spur
No spur
No spur
No spur
No spur
No spur
≥ 400
498.51 kHz
–89 dBc
498.51 kHz
–90 dBc
No spur
498.51 kHz,
–92 dBc
No spur
No spur
≥ 600
No spur
No spur
No spur
No spur
No spur
No spur
≥ 800
No spur
No spur
No spur
No spur
No spur
No spur
≥ 1000
No spur
No spur
No spur
2575.45 kHz,
–95 dBc
No spur
1000.00 kHz,
–91 dBc
≥ 3000
5259.33 kHz,
–99 dBc
3488.48 kHz,
–101 dBc
No spur
No spur
6515.59 kHz,
–100 dBc
No spur
9310.91 kHz,
–106 dBc
6515.59 kHz,
–99 dBc
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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June 20, 2007 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 200724A
PRELIMINARY DATA SHEET • SKY73101 VCO/SYNTHESIZER
–60
1800 MHz
1880 MHz
1930 MHz
1990 MHz
–70
–80
Phase Noise (dBc/Hz)
–90
–100
–110
–120
–130
–140
–150
–160
–170
–180
0.1
1
10
100
1000
10000
Offset Frequency (kHz)
S1087
Figure 5. Single Sideband Phase Noise Measurements
90
1800 MHz
1880 MHz
1930 MHz
1990 MHz
80
70
60
50
Relative Phase (deg)
40
30
20
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
100
200
300
400
Time (μs)
500
S1088
Figure 6. Settling Time Measurements
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200724A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 20, 2007
9
PRELIMINARY DATA SHEET • SKY73101 VCO/SYNTHESIZER
C2
10 nF
×
6
7
8
9
10
GND
GND
GND
N/C
GND
GND
29
GND
GND
GND
GND
GND
N/C
28
27
×
26
SW_EN
GND
GND
GND
25
SKY73101
GND
24
GND
23
GND
FREF
GND
LD
GND
N/C
Frequency
Reference
Lock Detect
22
21
×
20
RF_OUT
GND
RF Output
(50 Ω Controlled
Impedance Line)
30
11
12
GND
13
14
15
16
17
18
LE
5
31
DATA
4
32
CLK
RF Output
Switch Control
33
GND
3
34
GND
2
35
N/C
1
36
GND
37
GND
38
GND
+
VDD
C1
10 μF
GND
+5 V
From Regulator
19
×
Latch Enable
Data
Clock
S1086
Figure 7. SKY73101 Typical Application Schematic
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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June 20, 2007 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 200724A
Pin 1 Indicator
9
2X 1.75
4X 1
4X 2
4X 3
24X 4.4
PRELIMINARY DATA SHEET • SKY73101 VCO/SYNTHESIZER
38X SMT Pad
0.1 A B C
B
Pin 38
C
C
18X 5.9
Pin 1 Indicator
See Detail D
Pin 1
4X 4.5
4X 3.5
A
4X 2.5
4X 1.5
4X 0.5
12
0
2X 1.25
See Detail E
8X Solder Mask Openings
2X 3.75
0.2 A B C
B
A
1.75 ± 0.1
0
0.15 A B C
0.1
Side View
Top View
0.5 ± 0.1
(0.1)
2X (0.1)
Bottom View
Metal Pad Edge
0.65 ± 0.1
0.5 ± 0.05
0.5 ± 0.1
Metal Pad Edge
Solder Mask Edges
0.5 ± 0.1
2X (0.1)
0.65 ± 0.1
Metal Pad Edge
Detail A
Detail C
Detail B
3.375
3.375
0.2 x 0.2
2.375
2.375
Solder Mask Edges
Solder Mask Edges
All measurements are in millimeters.
Detail D
Detail E
S960
Dimensioning and tolerancing according to ASME Y14.5M-1994.
Figure 8. SKY73101 38-Pin MCM Package Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200724A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 20, 2007
11
PRELIMINARY DATA SHEET • SKY73101 VCO/SYNTHESIZER
∅1.55 ± 0.05
0.30 ± 0.05
12.00
4.00
2.00 ± 0.05
1.75 ± 0.10
Pin #1
indicator
11.50 ± 0.05
B
A
24.00 ± 0.30
A
12.30
B
∅1.50 Min.
1.80
B
Notes:
1. Carrier tape material: black conductive polystyrene
2. Cover tape material: transparent conductive PSA
3. Cover tape size: 21.3 mm width
4. All measurements are in millimeters
9.35
A
S961
Figure 9. SKY73101 Tape and Reel Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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June 20, 2007 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 200724A
PRELIMINARY DATA SHEET • SKY73101 VCO/SYNTHESIZER
Ordering Information
Model Name
SKY73101 1805-1990 MHz VCO/Synthesizer
Manufacturing Part Number
Evaluation Kit Part Number
SKY73101-11 (Pb-free package)
Copyright © 2007, Skyworks Solutions, Inc. All Rights Reserved.
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Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury,
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Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of
products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for
applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters.
Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200724A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 20, 2007
13