TDA6500 Datasheet, PDF (8/37 Pages) NXP Semiconductors – 5 V mixer/oscillator and synthesizer for PAL and NTSC standards

Philips Semiconductors
TDA6500; TDA6501
5 V mixer/oscillator and synthesizer for PAL and NTSC standards
9397 750 15057
Product data sheet
The module address contains programmable address bits (MA1 and MA0) which offer the
possibility of having up to 4 synthesizers in one system by applying a specific voltage on
the AS input. Table 7 gives the relationship between the input voltage applied to the AS
input and bits MA1 and MA0.
Table 7: I²C-bus address selection
Voltage applied to pin AS
0 V to 0.1V_CC
0.2V_CC to 0.3V_CC or open
0.4V_CC to 0.6V_CC
0.9V_CC to V_CC
MA1
0
0
1
1
MA0
0
1
0
1
Table 8: Test modes
T2
T1
T0
Test modes
0
0
0
normal mode
0
0
1
normal mode; default mode at power-on reset
0
1
0
charge pump is off
0
1
1
control byte is followed by auxiliary byte AB instead of the band
switch byte BB
1
1
0
charge pump is sinking current
1
1
1
charge pump is sourcing current
1
0
0
1_{⁄2fref is available on pin P6/ADC} [1]
1
0
1
1_{⁄2fdiv is available on pin P6/ADC} [1]
[1] The ADC input cannot be used when these test modes are active; see Section 7.2.2 for more information.
Table 9:
RSA
0
0
1
1
Reference divider ratio select
RSB
Reference divider ratio
0
80
1
1 28
1
64
0
forbidden
Table 10: AGC take-over point
AL2
AL1
AL0
Asymmetrical mode
0
0
0
115 dBµV
0
0
1
115 dBµV
0
1
0
112 dBµV; default mode at power-on reset
0
1
1
109 dBµV
1
0
0
106 dBµV
1
0
1
103 dBµV
1
1
0
I_AGC = 0 mA; external AGC ^[1]
1
1
1
3.5 V; disabled ^[1]
[1] The AGC detector is disabled. Both the sinking and sourcing currents from the IC are disabled. The AGC
output goes into a high-impedance state and an external AGC source can be connected in parallel.
[2] The AGC detector is disabled and the fast mode current source is enabled.
Rev. 02 — 14 June 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
8 of 37