STV2050A STMicroelectronics, STV2050A Datasheet - Page 61

• Manufacturer Part Number: STV2050A
• Description: IC DGTL CONVERGENCE PROC 80-PQFP
• Manufacturer: STMicroelectronics
• Type: Videor

Specifications of STV2050A

• Applications: HDTV
• Mounting Type: Surface Mount
• Package / Case: 80-MQFP, 80-PQFP
• Case: QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13 CURRENT REFERENCE
The STV2050A delivers accurate and stabilized currents used to drive the convergence and
focus functions. It has an embedded voltage reference (band gap), which is used to generate
a reference current (I
The nominal voltage on the REFN pin is 500 mV. The Irefn current must be adjusted to 500
uA. This is obtained by using a temperature stable external resistor of 1 k . The reference
voltage may be adjusted by using the BGA[4:0] bits in the D5 register.
Figure 34. Current and Voltage References
BGA[4:0]
Band gap
reference
refN
voltage
)
STV2050A
+
-
REFC
STV2050A - CURRENT REFERENCE
I
REFN
REFN
V
REFN
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