Texas Instruments TCM4300 manual Transmit I and Q Channel Outputs, Auxiliary D/A Converters

2.4.5Transmit I and Q Channel Outputs

PARAMETER			MIN	TYP	MAX	UNIT
Peak output voltage full scale, centered at VCM		Differential		2.24		Vp
		Single ended		1.12
Nominal output-level (constellation radius) centered	Differential			1.5		V
at VCM		Single ended		0.75
Low-level drift				± 200		PPM/°C
Transmit error vector magnitude (EVM)				3%	4%
Resolution				8		bits
S/(N+D) ratio at differential outputs			48	52		dB
Gain error (I or Q channel)				± 8%	± 12%
Gain mismatch between I and Q					± 0.3	dB
Gain sampling mismatch between I and Q				20		ns
Zero code error differential					± 80	mV
Zero code error, each output, with respect to VCM					± 80	mV
Zero code error, I to Q, with respect to other channel (differential or					± 10	mV
single ended)
Load impedance, between P and N terminals			10			kΩ
Transmit offset DACs I and Q resolution				6		bits
Transmit offset DACs I and Q average step size			2.9	3.4	3.9	mV
Transmit offset DACs I and Q full-scale positive output				105.4		mV
Transmit offset DACs I and Q full-scale negative output				± 108.8		mV
Transmit offset DACs differential nonlinearity					± 1.1	LSB
Transmit offset DACs integral nonlinearity					± 1.1	LSB

2.4.6Auxiliary D/A Converters

PARAMETER	TEST CONDITIONS		MIN TYP	MAX	UNIT
	AVDD > 3 V² ,	AUXFS [1:0] = 00	0.2	2.5
Output range	AVDD > 4.5 V² ,	AUXFS [1:0] = 10	0.2	4	V
	AVDD > 5 V² ,	AUXFS [1:0] = 11	0.2	4.5
Resolution AGC, AFC, PWRCONT			8		bits
DACs
Resolution LCDCONTR DAC			4		bits
Gain + offset error (full scale) AGC,				± 3%
AFC, PWRCONT DAC
Gain + offset error (full scale)				± 7%
LCDCONTR DAC
Differential nonlinearity			± 0.75	± 1	LSB
Integral nonlinearity			± 0.75	± 1	LSB

²Range settings depends only on AUXFS [1:0]. The supply voltage is not detected.

2±4