TDA4856 Datasheet, PDF (24/56 Pages) NXP Semiconductors – I2C-bus autosync deflection controller for PC monitors

Philips Semiconductors
I²C-bus autosync deflection controller for
PC monitors
Product specification
TDA4856
SYMBOL
PARAMETER
CONDITIONS
t_W(hfb)(off)
minimum width of horizontal
flyback pulse for operation
without pre-correction
V_HFOCUS(p-p)
amplitude of horizontal focus register HFOCUS = 0
parabola (peak-to-peak value) _{register HFOCUS = 31}
V_VFOCUS(p-p)
amplitude of vertical parabola register VFOCUS = 0;
(peak-to-peak value)
note 8
register VFOCUS = 15;
note 8
V_{o(FOCUS)(max)}
V_{o(FOCUS)(min)}
I_{o(FOCUS)(max)}
C_{L(FOCUS)(max)}
maximum output voltage
minimum output voltage
maximum output current
maximum capacitive load
I_FOCUS = 0
I_FOCUS = 0
B+ control section; see Figs 22 and 23
TRANSCONDUCTANCE AMPLIFIER: PINS BIN AND BOP
V_i(BIN)
I_i(BIN)(max)
V_ref(int)
input voltage
maximum input current
reference voltage at internal
non-inverting input of OTA
V_o(BOP)(min)
V_o(BOP)(max)
I_o(BOP)(max)
g_m(OTA)
G_v(ol)
C_BOP(min)
minimum output voltage
maximum output voltage
maximum output current
transconductance of OTA
open-loop voltage gain
minimum value of capacitor at
BOP
I_BOP < 1 mA
note 11
note 12
VOLTAGE COMPARATOR: PIN BSENS
V_i(BSENS)
voltage range of positive
comparator input
V_i(BOP)
voltage range of negative
comparator input
I_{L(BSENS)(max)}
maximum leakage current
discharge disabled
OPEN-COLLECTOR OUTPUT STAGE: PIN BDRV
I_o(BDRV)(max)
I_LO(BDRV)
V_sat(BDRV)
t_{off(BDRV)(min)}
t_d(BDRV-HDRV)
maximum output current
output leakage current
saturation voltage
minimum off-time
delay between BDRV pulse
and HDRV pulse
note 13
V_BDRV = 16 V
I_BDRV < 20 mA
measured at
V_HDRV = V_BDRV = 3 V
MIN. TYP. MAX. UNIT
−
7.5
−
µs
−
0.06 −
V
−
3.3
−
V
−
0.02 −
V
−
1.1
−
V
6.15 6.4
1.0
1.3
±1.5 −
−
−
6.65 V
1.6
V
−
mA
20
pF
0
−
−
−
2.37 2.5
5.25 V
±1
µA
2.58 V
−
−
0.5
V
5.0
5.3
5.6
V
−
±500 −
µA
30
50
70
mS
−
86
−
dB
10
−
−
nF
0
−
5
V
0
−
5
V
−
−
−2
µA
20
−
−
mA
−
−
3
µA
−
−
300 mV
−
250 −
ns
−
500 −
ns
1999 Jul 13
24