TDA6402 Datasheet, PDF (9/40 Pages) NXP Semiconductors – 5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners

Philips Semiconductors
5 V mixers/oscillators and synthesizers for
cable TV and VCR 2-band tuners
Product specification
TDA6402; TDA6402A;
TDA6403; TDA6403A
Table 5 Description of symbols used in Tables 3 and 4
SYMBOL
A
MA1, MA0
N14 to N0
CP
T2, T1,T0
RSA, RSB
OS
PVHFL, PVHFH, PUHF, FMST
X
DESCRIPTION
acknowledge
programmable address bits (see Table 6)
programmable divider bits; N = N14 × 2¹⁴ + N13 × 2¹³ + ... + N1 × 2¹ + N0
charge pump current:
CP = 0 = 60 µA
CP = 1 = 280 µA (default)
test bits (see Table 7)
reference divider ratio select bits (see Table 8)
tuning amplifier control bit:
OS = 0; normal operation; tuning voltage is ‘ON’ (default)
OS = 1; tuning voltage is ‘OFF’ (high-impedance)
PNP ports control bits:
bit = 0; buffer n is ‘OFF’ (default)
bit = 1; buffer n is ‘ON’
don’t care
Table 6 Address selection (I²C-bus mode)
MA1
0
0
1
1
MA0
0
1
0
1
VOLTAGE APPLIED ON CE INPUT (SW = GND)
0 V to 0.1 × V_CC
open or 0.2 × V_CC to 0.3 × V_CC
0.4 × V_CC to 0.6 × V_CC
0.9 × V_CC to 1.0 × V_CC
Table 7 Test modes
T2
T1
T0
TEST MODES
0
0
0
automatic charge pump switched off
0
0
1
automatic charge pump switched on (note 1)
0
1
X
charge pump is ‘OFF’
1
1
0
charge pump is sinking current
1
1
1
charge pump is sourcing current
1
0
0
f_REF is available on pin LOCK/ADC (note 2)
1
0
1
1_{⁄2fDIV is available on pin LOCK/ADC (note 2)}
Notes
1. This is the default mode at power-on reset.
2. The ADC input cannot be used when these test modes are active; see Section “Read mode; R/W = 1 (see Table 9)”
for more information.
2000 Jan 24
9