Datasheet

TPS65950
SWCS032E–OCTOBER 2008–REVISED JANUARY 2011 www.ti.com
7.2.4.8 Pullup/Pulldown Resistors
Table 7-13 lists the parameters of the pullup/pulldown resistors.
Table 7-13. Pullup/Pulldown Resistors
Parameter Comments Min Typ Max Unit
Pullup Resistors
Bus pullup resistor on upstream
R
PUI
Bus idle 0.9 1.1 1.575
port (idle bus)
kΩ
Bus pullup resistor on upstream
R
PUA
Bus driven/driver outputs unloaded 1.425 2.2 3.09
port (receiving)
High (floating) V
IHZ
Pullups/pulldowns on DP and DM lines 2.7 3.6 V
Phone D+ pullup voltage V
PH_DP_UP
Driver outputs unloaded 3 3.3 3.6 V
Pulldown Resistors
R
PH_DP_DWN
Phone D+/– pulldown Driver outputs unloaded 14.25 18 24.8 kΩ
R
PH_DM_DWN
High (floating) V
IHZ
Pullups/pulldowns on DP and DM lines 2.7 3.6 V
D+/– Data Line
Upstream facing port C
INUB
22 75 pF
OTG device leakage V
OTG_DATA_LKG
0.342 V
Input impedance exclusive of Driver outputs unloaded (waiver from usb.org
Z
INP
80 120 kΩ
pullup/pulldown
(1)
standards committee)
(1) Waiver received from usb.org standards committee on ZINP 300kmin specification
7.2.4.9 PHY DPLL Electrical Characteristics
USB DPLL supports input frequencies of 12, 13, 19.2, 24, and 26 MHz. The input frequency must be
programmed through frequency select bits. USB DPLL provides a low jitter and gives eight equidistant
phases of the 480-MHz clock for the USB receiver.
Table 7-14 lists the electrical characteristics of the PHY DPLL.
Table 7-14. PHY DPLL Electrical Characteristics
Parameter Comments Min Typ Max Unit
12
13
Input clock 19.2 MHz
24
26
Digital supply VINTDIG 1.35 1.5 1.65 V
Analog 1.5-V supply VRUSB_1V5 1.35 1.5 1.65 V
Analog 1.8-V supply VRUSB_1V8 1.62 1.8 1.98 V
Output frequency (eight phases) 480 MHz
RMS period jitter (output) 10 ps
Deterministic period jitter (output) 50 ps
Frequency band: 1 to 10 Hz 310
Frequency band: 10 to 100 Hz 90
Frequency band: 100 to 1000 Hz 30
RMS jitter per phase noise
Frequency band: 1 to 10 kHz 10 ps
frequency band (input)
Frequency band: 10 to 100 kHz 10
Frequency band: 0.1 to 0.5 MHz 290
Frequency band: 0.5 to 1 MHz 650
110 USB HS 2.0 OTG Transceiver Copyright © 2008–2011, Texas Instruments Incorporated
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