MB15C700 Datasheet, PDF (11/18 Pages) Fujitsu Component Limited. – Built-in IF Band Voltage Controlled Oscillator Mask ROM Frequency Synthesizer

MB15C700 series
s REFERENCE CHARACTERISTICS DATA
PLLVDD = VCOVDD = 2.5 V, Ta = +25 °C
fVCO = 129.55 MHz, OSCin = 12.8 MHz, fr = 50 kHz
[Measurement circuit]
<VCOTANK CIRCUIT>
VCOTNKI
12 pF
220 nH
510 kΩ
DOPLL
VCOTNKO
1.5 pF
<Loop Filter>
2200 pF
3.3 kΩ
3.3 kΩ
22000 pF
3000 pF
VCOCNT
1. Measurement result
Parameter
VCO variable range
∆f
Reference leakage
S/N
C/N (BW = 21kHz)
Spurious
Lref1 (+)
Lref1 (−)
Lref2 (+)
Lref2 (−)
S/N
C/N1 (+)
C/N1 (−)
C/N2 (+)
C/N2 (−)
Lsp1
Lsp2
Lsp3
Lsp4
Lsp5
Lsp6
Lsp7
Lsp8
Lsp9
Lsp10
Lock-up time
TLOCK
Condition
fVCO1 (@VCOCNT = 0.8 V) −
fVCO2 (@VCOCNT = 1.8 V)
∆+fr
∆−fr
∆+ (fr × 2)
∆− (fr × 2)
∆1 kHz
∆+50 kHz
∆−50 kHz
∆+100 kHz
∆−100 kHz
2nd Harmonic (∆fVCO)
3rd Harmonic (∆ (fVCO × 2) )
4th Harmonic (∆ (fVCO × 3) )
Other (∆ (fVCO × 4) )
TRX band (∆ (fVCO × 5)
TRX band (∆ (fVCO × 6) )
∆ (fVCO × 7)
∆ (fVCO × 8)
∆ (fVCO × 9)
∆ (fVCO × 10)
PLLPS “L” to “H”
fVCO within ± 300 Hz,
VVCOout = −12 ± 3 dBm
Result
8.657
MHz
−67.3
−66.7
−72
−72
−71.3
−108
−108
−113
−113
−4.2
−10.8
−23.3
−26.0
−29.2
−35.7
−44.3
−49.2
−51.7
−60.7
dBc
dBc
dBc/Hz
dBc
0.622
ms
11