MR. JOHN ROY WILSON, LPC
Mental Health at Greenville Ave, Allen, TX
License number
Texas 16050
Category
Mental Health
Type
Mental Health
Address
Address
2
1506 N Greenville Ave SUITE 220, Allen, TX 75002
2612 Berry Hl, Mckinney, TX 75069
2612 Berry Hl, Mckinney, TX 75069
Phone
(972) 838-6290
(214) 592-0680
(214) 592-0680
Professional information
John R Wilson, Allen TX - LPC (Licensed professional counselor)
Specialties:
Counseling
Address:
1506 N Greenville Ave STE 220, Allen 75002
Languages:
English
Dual Path Phase Locked Loop (Pll) With Digitally Programmable Damping
US Patent:
7777577, Aug 17, 2010
Filed:
Aug 21, 2008
Appl. No.:
12/195514
Inventors:
Richard Ellis Jennings - Garland TX, US
Md Anwar Sadat - Plano TX, US
John Thomas Wilson - Allen TX, US
Md Anwar Sadat - Plano TX, US
John Thomas Wilson - Allen TX, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H03L 7/085, H03L 7/093
US Classification:
331 17, 331 25, 327156, 327157
Abstract:
In a method and apparatus for controlling damping and bandwidth in a phase locked loop (PLL), a loop filter is configured to have a dual path for charge pump current. A 3 dB bandwidth of the PLL is controlled by adjusting gain of a proportional current path. An integral current path includes a gating circuit to digitally control an amount of time an integral charge pump current received is passed through as an effective integral charge pump current. A resistor and capacitor (RC) circuit filters the proportional and effective integral charge pump currents, thereby providing a filtered input to a voltage controlled oscillator. Damping and hence peaking of the PLL is precisely controlled by sampling one of every p samples of the integral charge pump current to provide the effective integral charge pump current, p being an integer.
Circuit And Method To Balance Delays Through True And Complement Phases Of Differential And Complementary Drivers
US Patent:
7443217, Oct 28, 2008
Filed:
Mar 7, 2006
Appl. No.:
11/369452
Inventors:
John T. Wilson - Allen TX, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H03K 3/037
US Classification:
327199, 327141, 327 65, 327258, 326 82, 326 26
Abstract:
A circuit for balancing delays through true and complement phases of complementary drivers includes: a first driver; a second driver; a first delay device coupled to an input of the first driver and having an input coupled to an input signal node; a second delay device coupled to an input of the second driver and having an input coupled to the input signal node through a first inverter, wherein the first and second delay devices are clocked such that an input signal reaches the first driver simultaneously with an inverted input signal reaching the second driver.