Cypress CYW43353, Manual

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Document No. 002-14949 Rev. *E Page 87 of 113
PRELIMINARY
CYW43353
15.7 General Spurious Emissions Specifications
16. Internal Regulator Electrical Specifications
Functional operation is not guaranteed outside of the specification limits provided in this section.
16.1 Core Buck Switching Regulator
Table 36. General Spurious Emissions Specifications
Parameter Condition/Notes Min. Typ. Max. Unit
Frequency range – 2400 – 2500 MHz
General Spurious Emissions
TX emissions 30 MHz < f < 1 GHz RBW = 100 kHz – –93 – dBm
1 GHz < f < 12.75 GHz RBW = 1 MHz – –45.5 – dBm
1.8 GHz < f < 1.9 GHz RBW = 1 MHz – –72 – dBm
5.15 GHz < f < 5.3 GHz RBW = 1 MHz – –87 – dBm
RX/standby emissions 30 MHz < f < 1 GHz RBW = 100 kHz – –107 – dBm
1 GHz < f < 12.75 GHz RBW = 1 MHz –
–65
1
1. The value presented in this table is the result of LO leakage at 3/2 * f
c
for 2.4 GHz or 2/3 * f
c
for 5 GHz (where f
c
is the carrier frequency). For all other
emissions in this range, the value is –96 dBm.
– dBm
1.8 GHz < f < 1.9 GHz RBW = 1 MHz – –87 – dBm
5.15 GHz < f < 5.3 GHz RBW = 1 MHz – –100 – dBm
Table 37. Core Buck Switching Regulator (CBUCK) Specifications
Specification Notes Min. Typ. Max. Units
Input supply voltage (DC) DC voltage range inclusive of disturbances. 3.0 3.6
4.8
1
V
PWM mode switching frequency CCM, Load > 100 mA VBAT = 3.6V 2.8 4 5.2 MHz
PWM output current – – – 600 mA
Output current limit – – 1400 mA
Output voltage range Programmable, 30 mV steps Default = 1.35V 1.2 1.35 1.5 V
PWM output voltage
DC accuracy Includes load and line regulation.
Forced PWM mode
–4 – 4 %
PWM ripple voltage, static Measure with 20 MHz bandwidth limit.
Static Load. Max. Ripple based on VBAT = 3.6V, Vout = 1.35V,
Fsw = 4 MHz, 2.2
μ H inductor L > 1.05 μ H, Cap + Board total-
ESR < 20 m Ω , C
out
> 1.9 μ F, ESL<200pH
– 7 20 mVpp
PWM mode peak efficiency Peak Efficiency at 200 mA load 78 86 – %
PFM mode efficiency 10 mA load current 70 81 – %
Start-up time from power down VIO already ON and steady. Time from REG_ON rising edge
to CLDO reaching 1.2V – – 850 µs
External inductor 0806 size, ± 30%, 0.11 ± 25% Ohms – 2.2 – µH
External output capacitor Ceramic, X5R, 0402, ESR <30 m Ω at 4 MHz, ± 20%, 6.3V
2.0
2
4.7
10
3
µF
External input capacitor For SR_VDDBATP5V pin, ceramic, X5R, 0603,
ESR < 30 m
Ω at 4 MHz, ± 20%, 6.3V, 4.7 µF
0.67
2
4.7 – µF