IP Library Granted Patent US 9,722,602
Granted Patent B2
US 9,722,602 · App. 14/978,691 · Granted Aug 1, 2017

Transmitter

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Quick Facts
Patent No.
US 9,722,602
App. No.
14/978,691
Granted
Aug 1, 2017
Kind
B2
Abstract

A transmitter includes: a main pull-up driver suitable for pull-up driving an output node; and an auxiliary pull-up driver suitable for pull-up driving the output node based on a voltage of the output node, wherein the auxiliary pull-up driver compensates for non-linear driving current characteristics of the main pull-up driver.

Claims (27)

1. A transmitter comprising:

a main pull-up driver suitable for pull-up driving an output node in response to a pull-up driving signal; and

an auxiliary pull-up driver comprising first and second PMOS transistors connected in series between a pull-up voltage terminal and the output node, wherein the first PMOS transistor is turned on/off in response to the pull-up driving signal and the second PMOS transistor is turned on/off in response to the output node.

2. The transmitter of claim 1 , further comprising:

a main pull-down driver suitable for pull-down driving the output node in response to a pull-down driving signal; and

an auxiliary pull-down driver comprising first and second NMOS transistors connected in series between a pull-down voltage terminal and the output node, wherein the first NMOS transistor is turned on/off in response to the pull-down driving signal and the second NMOS transistor is turned on/off in response to the output node.

3. The transmitter of claim 1 , wherein the main pull-up driver comprises a third PMOS transistor that pull-up drives the output node in response to the pull-up driving signal.

4. The transmitter of claim 3 , wherein the auxiliary pull-up driver further comprises:

a fourth PMOS transistor that transmits the voltage of the output node to a gate of the second PMOS transistor in response to the pull-up driving signal.

5. The transmitter of claim 2 , wherein the main pull-down driver comprises a third NMOS transistor that pull-down drives the output node in response to the pull-down driving signal.

6. The transmitter of claim 5 , wherein the auxiliary pull-down driver further comprises:

a fourth NMOS transistor that transmits the voltage of the output node to a gate of the second NMOS transistor in response to the pull-down driving signal.

7. A transmitter comprising:

a main pull-down driver suitable for pull-down driving an output node in response to a pull-down driving signal; and

an auxiliary pull-down driver comprising first and second NMOS transistors connected in series between a pull-down voltage terminal and the output node, wherein the first NMOS transistor is turned on/off in response to the pull-down driving signal and the second NMOS transistor is turned on/off in response to the output node.

8. The transmitter of claim 7 , wherein the main pull-down driver comprises a third NMOS transistor that pull-down drives the output node in response to the pull-down driving signal.

9. The transmitter of claim 8 , wherein the auxiliary pull-down driver further comprises:

a fourth NMOS transistor that transmits the voltage of the output node to a gate of the second NMOS transistor in response to the pull-down driving signal.

10. A transmitter comprising:

a first PMOS transistor suitable for pull-up driving an output node based on a pull-up driving signal;

a second PMOS transistor suitable for supplying a pull-up voltage based on the pull-up driving signal;

a third PMOS transistor suitable for pull-up driving the output node using the pull-up voltage supplied through the second PMOS transistor based on a voltage of the output node;

a first NMOS transistor suitable for pull-down driving the output node based on a pull-down driving signal;

a second NMOS transistor suitable for supplying a pull-down voltage based on the pull-down driving signal;

a third NMOS transistor suitable for pull-down driving the output node using the pull-down voltage supplied through the second NMOS transistor based on the voltage of the output node; and

a fourth PMOS transistor suitable for transmitting the voltage of the output node based on the pull-up driving signal.

11. The transmitter of claim 10 , further comprising a fourth NMOS transistor suitable for transmitting the voltage of the output node based on the pull-down driving signal.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2024
From: SK HYNIX INC.
To: MIMIRIP LLC
Reel/Frame 067335/0246 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 22, 2015
From: KIM, JAE-HEON
To: SK HYNIX INC.
Reel/Frame 037371/0511 →