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TDA6501TT Datasheet(PDF) 10 Page - NXP Semiconductors |
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TDA6501TT Datasheet(HTML) 10 Page - NXP Semiconductors |
10 / 37 page 9397 750 15057 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Product data sheet Rev. 02 — 14 June 2005 10 of 37 Philips Semiconductors TDA6500; TDA6501 5 V mixer/oscillator and synthesizer for PAL and NTSC standards [1] Accuracy is ±0.03VCC. 7.2.3 Power-on reset The power-on detection threshold voltage is set to VPOR = 3.5 V at room temperature. Below this threshold, the device is reset to the power-on state. In the power-on state, the charge pump current is set to 280 µA, the tuning voltage output is disabled, the test bits T2 = 0, T1 = 0 and T0 = 1, the AGC take-over point is set to 112 dB µV and the AGC current is set to the slow mode. The high band is selected by default. Table 13: ADC levels Voltage applied to ADC input [1] A2 A1 A0 0.60VCC to VCC 100 0.45VCC to 0.60VCC 011 0.30VCC to 0.45VCC 010 0.15VCC to 0.30VCC 001 0 V to 0.15VCC 000 Table 14: Default bits at power-on reset Name Byte Bit MSB LSB Address byte ADB 11000MA1 MA0 X Divider byte 1 DB1 0 XXXXXXX Divider byte 2 DB2 XXXXXXXX Control byte CB 11001X X 1 Band switch byte BB - 0 - 00000 Auxiliary byte AB 0010 ---- |
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